View MX019_1286530.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

DATA BULLETIN
MX019
FEATURES
4 Digitally Controlled Amplifiers 15 Gain/Attenuation Steps 3 Amplifiers 3dB Range in 0.43dB Steps 1 'Volume' Amplifier 14dB Range in 2dB Steps 8-Bit Serial Data Control Output Mute Function
SERIAL CLOCK INPUT SERIAL DATA INPUT
2 1
Quad Digital Control Amplifier
APPLICATIONS
Gain Control Applications Audio Data Telecommunications, Radio, & Industrial Applications
8-BIT SERIAL DATA INPUT
LOAD/LATCH
LOAD/LATCH
3
VOLUME
4
Ch1
Ch4
VDD VBIAS
2 3
VSS CHIP ADDRESS
Ch2
Ch3
2
1
4
3
CONTROLLED AUDIO OUTPUT LINES
The MX019 Digitally Adjustable Amplifier Array replaces trimmer potentiometers and volume controls in Cellular, LMR, Telephony and Communication applications where voice or data signals need adjustment. The MX019 is a single-chip LSI consisting of four digitally controlled amplifier stages, each with 15 distinct gain/attenuation steps. Control of each individual amplifier is by an 8-bit serial data stream. Three of the amplifier stages offer a 3dB range in steps of 0.43dB, while the remaining amplifier offers a 14dB range in steps of 2dB, and is suggested for volume control applications. Each amplifier includes a 16th 'Off' state which, when applied, mutes the output audio from that channel. This array uses a Chip Select input to select one of two MX019s in a system. The MX019 uses the host microprocessor to digitally control the set-up of all audio levels during development, production/calibration, and operation. Such applications include: 1. Control, adjustment, and set-up of communications equipment by an Intelligent ATE without manual intervention - eg. Deviation, Microphone and L/S Levels, RX Audio Level etc. 2. Automatic Dynamic Compensation of drift caused by variations in temperature, linearity, etc. 3. Fully automated servicing and re-alignment. The MX019 is a low-power, single 5-volt CMOS device available in 24-pin TSSOP (MX019TN), 16-pin SOIC (MX019DW), 16-pin CDIP (MX019J) and 16-pin PDIP (MX019P) package versions.
1998 MX-COM, INC. www.mxcom.com Tel: 800 638 5577 910 744 5050 Fax: 910 744 5054 Doc. # 20480077.006
4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA
All trademarks and service marks are held by their respective companies
Quad Digital Control Amplifier
2
MX019
CONTENTS
Section 1. Block Diagram 2. Signal List 3. External Components 4. General Description
4.1 Control Data and Timing
4.1.1 Data Loading 4.1.2 Timing
Page 3 4 5 5
5
5 7
5. Application 6. Performance Specification
6.1 Electrical Performance
6.1.1 Absolute Maximum Ratings 6.1.2 Operating Limits 6.1.3 Operating Characteristics
8 8
8
8 8 9
6.2 Packaging
MX-COM, Inc. reserves the right to change specifications at any time and without notice.
10
1998 MX-COM, INC.
www.mxcom.com Tel: 800 638 5577 910 744 5050 Fax: 910 744 5054
Doc. # 20480077.006
4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA
All trademarks and service marks are held by their respective companies
Quad Digital Control Amplifier
3
MX019
1. Block Diagram
SERIAL CLOCK INPUT SERIAL DATA INPUT
2 1 3
VOLUME
8-BIT SERIAL DATA INPUT
LOAD/LATCH
LOAD/LATCH
4
Ch1
Ch4
VDD VBIAS
2 3
VSS CHIP ADDRESS
Ch2
Ch3
2
1
4
3
CONTROLLED AUDIO OUTPUT LINES
Figure 1: Device Block Diagram
1998 MX-COM, INC.
www.mxcom.com Tel: 800 638 5577 910 744 5050 Fax: 910 744 5054
Doc. # 20480077.006
4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA
All trademarks and service marks are held by their respective companies
Quad Digital Control Amplifier
4
MX019
2. Signal List
Pin No. J/P DW 1 2 TN 1 2 Serial Clock Load/ Latch This external clock pulse input is used to "clock in" the Control Data. See Figure 3. This input has an internal 1M pullup resistor. This input governs the loading and execution of the control data. During serial data loading this input should be kept at a logical '0' to ensure that data rippling past the latches has no effect. When all 8 bits have been loaded, this input should be strobed '0 - 1 - 0' to latch the new data in. Data is executed on the falling edge of the strobe. If the Load /Latch input is used this pin should be left open circuit. This input has an internal 1M pullup resistor. Name Description
3
4
LOAD / LATCH This inverted Load/ Latch input governs the loading and execution of control data. During serial data loading this input should be kept at a logical '1' to ensure that data rippling past the latches has no effect. When all 8 bits have been loaded, this input should be strobed '1' - '0' - '1' to latch the new data in. Data is executed on the rising edge of the strobe. If the Load/ Latch input is used this pin should be left open circuit. This input has an internal 1M pulldown resistor. Ch1 Input Ch2 Input Ch3 Input Ch4 Input VSS VBIAS Ch4 Output Ch3 Output Ch2 Output Ch1 Output Chip Address Control Data Input Negative supply rail (GND). The output of the on-chip bias circuitry, held at VDD/2. This pin should be decoupled to VSS as shown in Figure 2. Controlled Analog Outputs : These are individual "Gain Controlled" amplifier outputs. Ch1 to Ch3 range from -3dB to +3dB in 0.43dB steps, Ch4 can be utilized as a volume control, ranging from -14dB to +14dB in 2.0dB steps. In the "OFF" mode there is no output from the selected amplifier. A logic input to select one of two MX019 ICs in a system (see Table 1). This input has an internal 1M pulldown resistor. Operation of the 4 amplifier channels (Ch1 - Ch4) is controlled by the 8 bits of data entered serially at this pin. The data is entered (bit 7 to bit 0) on the rising edge of the external Serial Clock. The data format is described in Table 1, Table 2 and Figure 3. This input has an internal 1M pullup resistor. Positive supply rail. A single +5V power supply is required. Analog Inputs : These individual amplifier inputs are self-biasing; AC input analog signals must be capacitively coupled to these pins, as shown in Figure 2. Note that amplifiers Ch1 to Ch4 are 'inverting amplifiers.'
4 5 6 7 8 9 10 11 12 13 14 15
5 6 7 8 12 13 14 17 18 19 20 23
16
24
VDD
1998 MX-COM, INC.
www.mxcom.com Tel: 800 638 5577 910 744 5050 Fax: 910 744 5054
Doc. # 20480077.006
4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA
All trademarks and service marks are held by their respective companies
Quad Digital Control Amplifier
5
MX019
3. External Components
VDD SERIAL CLOCK INPUT LOAD/LATCH LOAD/LATCH CHANNEL 1 INPUT CHANNEL 2 INPUT CHANNEL 3 INPUT CHANNEL 4 INPUT VSS C1 C2 C3 C4
1 2 3 4 5 6 7 8
16 15 14
VDD CONTROL DATA INPUT CHIP ADDRESS CHANNEL 1 OUTPUT CHANNEL 2 OUTPUT CHANNEL 3 OUTPUT CHANNEL 4 OUTPUT VBIAS C5 C6
MX019J
13 12 11 10 9
C1 to C4 C5 C6
0.1F 1.0F 1.0F
20% 20% 20%
Figure 2: Recommended External Components Notes: 1. Channel Amplifiers 1 to 4 are inverting amplifiers. 2. Analog input capacitors C1 to C4 are only required for AC input signals, DC input signals do not require these components.
4. General Description
4.1 Control Data and Timing
The gain of each amplifier block (Channel 1 to Channel 4) in the MX019 is set by a separate 8-bit data word (bit 7 to bit 0). This 8-bit word, consisting of 4 Address bits (bit 7 to bit 4) and 4 Gain Control bits (bit 3 to bit 0), is loaded to the Control Data Input in serial format using the external data clock. 4.1.1 Data Loading The 8-bit data word is loaded bit 7 first and bit 0 last. Bit 7 must be a logic "1" to address the chip. If bit 7 in the word is a logic "0" that 8-bit word will not be executed. The Chip Address input permits the use of two devices in a system by indicating to the chip what its address is, a "1" or a "0." Bit 6 in the address section of the control word is then used to select which device is being controlled. Figure 3 shows the timing information required to load and operate this device. Data is loaded to the MX019 on the rising edge of the Serial Clock. Loaded data is executed on the falling (rising) edge of the Load/ Latch ( Load /Latch) pulse. Table 1 shows the format of each 4-bit Address word, Table 2 shows the format of each Gain Control word with Figure 3 describing the data loading operation and timing.
1998 MX-COM, INC.
www.mxcom.com Tel: 800 638 5577 910 744 5050 Fax: 910 744 5054
Doc. # 20480077.006
4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA
All trademarks and service marks are held by their respective companies
Quad Digital Control Amplifier
6
MX019
Bit 7 MSB 1 1 1 1 1 1 1 1
Bit 6 0 0 0 0 1 1 1 1
Bit 5 0 0 1 1 0 0 1 1
Bit 4 LSB 0 1 0 1 0 1 0 1
Channel Address 1 2 3 4 1 2 3 4
Chip Address 0 0 0 0 1 1 1 1
Chip Number Chip 1
Chip 2
Table 1: Address Bits Format
Bit 3 MSB 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1
Bit2 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1
Bit 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1
Bit 0 LSB 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1
Stage 1, 2, 3 (0.43dB) OFF -3.0 -2.571 -2.143 -1.714 -1.286 -0.857 -0.428 0 0.428 0.857 1.286 1.714 2.143 2.571 3.0
Stage 4 (2.0dB) OFF -14.0dB -12.0 -10.0 -8.0 -6.0 -4.0 -2.0 0 2.0 4.0 6.0 8.0 10.0 12.0 14.0
Table 2: Gain Control Bits Format
1998 MX-COM, INC.
www.mxcom.com Tel: 800 638 5577 910 744 5050 Fax: 910 744 5054
Doc. # 20480077.006
4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA
All trademarks and service marks are held by their respective companies
Quad Digital Control Amplifier
7
MX019
4.1.2 Timing Timing (Figure 3) Serial Clock "High" Pulse Width Serial Clock "Low" Pulse Width Data Set-up Time Data Hold Time Load/Latch Pulse Width Load/Latch Delay Load/Latch Over Serial Data Clock Frequency (tPWH) (tPWL) (tDS) (tDH) (tLLW) (tLLD) (tLLO) Min. 250 250 150 50.0 150 200 0.0 2.0 Typ. Max. Units ns ns ns ns ns ns ns MHz
SERIAL DATA CLOCK t PWH
t PWL SERIAL DATA IN
(ONE 8-BIT WORD)
t DS
tDH
8th Clock Pulse
Next Clock Pulse
Logic '1' Loaded First
BIT 7
Loaded Last
BIT 6 BIT 1 BIT 0
LOAD/LATCH
t LLD t LLW t LLO
LOAD/LATCH
Figure 3: Serial Control Data Loading Diagram
1998 MX-COM, INC.
www.mxcom.com Tel: 800 638 5577 910 744 5050 Fax: 910 744 5054
Doc. # 20480077.006
4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA
All trademarks and service marks are held by their respective companies
Quad Digital Control Amplifier
8
MX019
5. Application
To avoid excess noise and instability you should take note of the following: 1. A noisy or badly regulated power supply can cause instability and/or variance of selected gains. 2. Care should be taken on the design and layout of the printed circuit board. 3. All external components (Figure 2) should be kept close to the MX019 package. 4. Inputs and outputs should be shielded wherever possible. 5. Tracks should be kept short. 6. Analog tracks should not run parallel to digital tracks. 7. A "Ground Plane" connected to VSS will assist in eliminating external pick-up on the channel input and output pins. 8. Do not run high-level output tracks close to low-level input tracks.
6. Performance Specification
6.1 Electrical Performance
6.1.1 Absolute Maximum Ratings Exceeding these maximum ratings can result in damage to the device. General Supply Voltage Input Voltage at any pin (ref VSS = 0V) Current VDD VSS Any other pins J/P/DW Packages Total Device Dissipation @ TAMB 25C Derating above 25C TN Packages Total Device Dissipation @ TAMB 25C Derating above 25C Operating Temperature Storage Temperature -40 -55 500 9 85 125 mW mW/C above 25C C C 800 10 mW mW/C above 25C 30 30 20 mA mA mA Min. -0.3 -0.3 Max. 7.0 (VDD + 0.3) Units V V
6.1.2 Operating Limits Correct operation of the device outside these limits is not implied. Min. VDD Operating Temperature 4.5 -40 Typ. 5.0 Max. 5.5 85 Units V C
1998 MX-COM, INC.
www.mxcom.com Tel: 800 638 5577 910 744 5050 Fax: 910 744 5054
Doc. # 20480077.006
4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA
All trademarks and service marks are held by their respective companies
Quad Digital Control Amplifier
9
MX019
6.1.3 Operating Characteristics For the following conditions unless otherwise specified: VDD = 5.0V, TAMB = 25C Audio Level 0dB ref. = 775mVRMS, Amplifier Gain Set = 0dB Notes Static Values Supply Current Dynamic Values Control Functions Input Logic '1' Input Logic '0' Digital Input Impedances Amplifier Stages (General) Bandwidth (-3dB) Output Impedance Total Harmonic Distortion Output Noise Level (per stage) Onset of Clipping Gain Variation Interstage Isolation "Trimmer" Stages (Ch1 - Ch3) Gain Gain per Step (15 in No.) Step Error Input Impedance "Volume" Stage (Ch4) Gain Gain per Step (15 in No.) Step Error Input Impedance Operating Characteristics Notes: 1. Gain Set 0dB, Input Level 1kHz -3.0dB (549mVrms). 2. With an a.c short-circuit input, measured in a 30kHz bandwidth. 3. See Figure 4. 4. Over the temperature and supply voltage range. 50.0 -14.0 2.0 0.4 +14.0 dB dB dB k 100.0 -3.0 0.43 0.2 +3.0 dB dB dB k 1 2 3 4 60.0 20.0 1.0 0.35 180.0 1.73 0.1 0.5 400.0 kHz k % VRMS VRMS dB dB 0.5 1.0 3.5 1.5 V V M 1.5 mA Min. Typ. Max Units
1998 MX-COM, INC.
www.mxcom.com Tel: 800 638 5577 910 744 5050 Fax: 910 744 5054
Doc. # 20480077.006
4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA
All trademarks and service marks are held by their respective companies
Quad Digital Control Amplifier
10
MX019
60
SINAD
(dB)
50
Input Frequency = 1.0kHz
40 1000.0 775.0 0 1730.0
30
10.0 -40
25.0 -30
75.0 110.0 -20 -17
250.0 -10
mVrms
7.0
INPUT
LEVEL
dB
Figure 4: SINAD vs Input Level - Typical Values
6.2 Packaging
A
A B C E H J L P T Y
Package Tolerances
DIM. MIN. TYP. MAX.
ALTERNATIVE PIN LOCATION MARKING
B
E L
PIN 1 Y C H J P
T
0.311 (7.90) 0.303 (7.70) 0.169 (4.30) 0.177 (4.50) ---------0.047 (1.20) 0.248 (6.30) 0.256 (6.50) 0.002 (0.05) 0.006 (0.15) 0.007 (0.17) 0.012 (0.30) 0.020 (0.50) 0.030 (0.75) 0.0256 (0.65) 0.003 (0.08) 0.008 (0.20) 0 8
NOTE : All dimensions in inches (mm.) Angles are in degrees
Figure 5: 24-pin TSSOP Mechanical Outline: Order as part no. MX019TN
1998 MX-COM, INC.
www.mxcom.com Tel: 800 638 5577 910 744 5050 Fax: 910 744 5054
Doc. # 20480077.006
4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA
All trademarks and service marks are held by their respective companies
Quad Digital Control Amplifier
11
MX019
Package Tolerances
A Z B E W L PIN 1 X Y C H J P K T
DIM. A B C E H J K L P T W X Y Z MIN. TYP. MAX.
0.413 (10.49) 0.395 (10.03) 0.299 (7.59) 0.286 (7.26) 0.093 (2.36) 0.105 (2.67) 0.419 (10.64) 0.390 (9.90) 0.003 (0.08) 0.020 (0.51) 0.013 (0.33) 0.020 (0.51) 0.041 (1.04) 0.050 (1.27) 0.016 (0.41) 0.050 (1.27) 0.009 (0.23) 0.0125 (0.32) 45 0 10 7 5 5
ALTERNATIVE PIN LOCATION MARKING
NOTE : All dimensions in inches (mm.) Angles are in degrees
Figure 6: 16-pin SOIC Mechanical Outline: Order as part no. MX019DW
A
DIM. A B C E E1 H J J1 K L P T Y
Package Tolerances
MIN. TYP. MAX.
0.810 (20.57) 0.740 (18.80) 0.262 (6.63) 0.240 (6.10) 0.135 (3.43) 0.200 (5.06) 0.300 (7.62) 0.390 (9.91). 0.290 (7.37) 0.325 (8.26) 0.015 (0.38) 0.070 (1.77) 0.014 (0.35) 0.023 (0.58) 0.040 (1.02) 0.065 (1.65) 0.056 (1.42) 0.064 (1.63) 0.121 (3.07) 0.150 (3.81) 0.100 (2.54) 0.008 (0.20) 0.015 (0.38) 7
B
E1 Y
E
PIN 1
T
K H L J J1 P
C
NOTE : All dimensions in inches (mm.) Angles are in degrees
Figure 7: 16-pin PDIP Mechanical Outline: Order as part no. MX019P
1998 MX-COM, INC.
www.mxcom.com Tel: 800 638 5577 910 744 5050 Fax: 910 744 5054
Doc. # 20480077.006
4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA
All trademarks and service marks are held by their respective companies
Quad Digital Control Amplifier
12
MX019
Package Tolerances
A
DIM. MIN.
0.753 (19.13) 0.285 (7.24) 0.165 (4.19) 0.370 (9.40)
TYP.
MAX.
0.767 (19.48) 0.291 (7.39) 0.230 (5.84) 0.415 (10.53)
B
E1
E
T PIN 1 K H L J J1 F P
K1
C
A B C E E1 F H J J1 K K1 L P T
0.300 (7.61) 0.317 (8.04) 0.70 (17.78) 0.020 (0.51) 0.018 (0.46) 0.055 (1.39) 0.053 (1.33) 0.080 (2.03) 0.075 (1.91) 0.080 (2.03) 0.115 (2.92) 0.200 (5.08) 0.100 (2.54) 0.0098 (0.249) 0.0102 (0.259)
NOTE : All dimensions in inches (mm.) Angles are in degrees
Figure 8: 16-pin CDIP Mechanical Outline: Order as part no. MX019J
1998 MX-COM, INC.
www.mxcom.com Tel: 800 638 5577 910 744 5050 Fax: 910 744 5054
Doc. # 20480077.006
4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA
All trademarks and service marks are held by their respective companies
CML Microcircuits
COMMUNICATION SEMICONDUCTORS
CML Product Data
In the process of creating a more global image, the three standard product semiconductor companies of CML Microsystems Plc (Consumer Microcircuits Limited (UK), MX-COM, Inc (USA) and CML Microcircuits (Singapore) Pte Ltd) have undergone name changes and, whilst maintaining their separate new names (CML Microcircuits (UK) Ltd, CML Microcircuits (USA) Inc and CML Microcircuits (Singapore) Pte Ltd), now operate under the single title CML Microcircuits. These companies are all 100% owned operating companies of the CML Microsystems Plc Group and these changes are purely changes of name and do not change any underlying legal entities and hence will have no effect on any agreements or contacts currently in force. CML Microcircuits Product Prefix Codes Until the latter part of 1996, the differentiator between products manufactured and sold from MXCOM, Inc. and Consumer Microcircuits Limited were denoted by the prefixes MX and FX respectively. These products use the same silicon etc. and today still carry the same prefixes. In the latter part of 1996, both companies adopted the common prefix: CMX. This notification is relevant product information to which it is attached. CML Microcircuits (USA) [formerly MX-COM, Inc.] Product Textual Marking On CML Microcircuits (USA) products, the `MX-COM' textual logo is being replaced by a `CML' textual logo.
Company contact information is as below:
CML Microcircuits (UK)Ltd
COMMUNICATION SEMICONDUCTORS
CML Microcircuits (USA) Inc.
COMMUNICATION SEMICONDUCTORS
CML Microcircuits (Singapore)PteLtd
COMMUNICATION SEMICONDUCTORS
Oval Park, Langford, Maldon, Essex, CM9 6WG, England Tel: +44 (0)1621 875500 Fax: +44 (0)1621 875600 uk.sales@cmlmicro.com www.cmlmicro.com
4800 Bethania Station Road, Winston-Salem, NC 27105, USA Tel: +1 336 744 5050, 0800 638 5577 Fax: +1 336 744 5054 us.sales@cmlmicro.com www.cmlmicro.com
No 2 Kallang Pudding Road, 09-05/ 06 Mactech Industrial Building, Singapore 349307 Tel: +65 7450426 Fax: +65 7452917 sg.sales@cmlmicro.com www.cmlmicro.com
D/CML (D)/2 May 2002

▲Up To Search▲

Price & Availability of MX019

	To Download MX019 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .