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TDA7469
LOW VOLTAGE ANALOG AUDIO PROCESSOR WITH HEADPHONE POWER AMPLIFIER
PRODUCT PREVIEW
2 STEREO INPUT 1 STEREO OUTPUT TREBLE BOOST BASS CONTROL BASS AUTOMATIC LEVEL CONTROL VOLUME CONTROL IN 1dB STEPS MUTE STAND-BY FUNCTION SOFTWARE CONTROLLED ALL FUNCTION ARE PROGRAMMABLE VIA SERIAL BUS DESCRIPTION The TDA7469 is a volume tone (bass and treble) processor for quality audio applications in Low voltage supply portable systems. Bass ALC (Automatic Level Control) function can be adjusted by a dedicated pin. The control of all the functions is accomplished by serial bus. The AC signal setting is obtained by resistor networks and switches combined with operational amplifiers. BLOCK DIAGRAM TDA7469 (SSOP24)
SO20
SO16
SSOP24
ORDERING NUMBER: TDA7469 (SSOP24) TDA7469D (SO16) TDA7469A (SO20)
Thanks to the used BIPOLAR/CMOS Technology, Low Distortion, Low Noise and DC stepping are obtained.
5.6K 3.3nF 68nF 68nF
0.47F IN1-R 25K
MUX_R
TREBLE-R
BASSI-R
BASSO-R
gm +6dB / 0dB VOLUME TREBLE RB 16 or 32 BASS x1 220F PGND-R PVS-R OUT-R
25K 0.47F IN2-R 25K
+6dB / -63dB SUPPLY BASS_ALC CONTROL
25K
0.47F
ALC
HALF_WAVE RECTIFIER
I2C BUS DECODER + LATCHES
SCL SDA
IN1-L 0.47F 25K +6dB / -63dB x1 VOLUME 25K +6dB / 0dB gm TREBLE BASS 16 or 32 RB VREF SUPPLY VS SUPPLY PVS-L PGND-L 25K 0.47F IN2-L 220F OUT-L
25K
D00AU1234
MUX_L 3.3nF
TREBLE-L
BASSI-L 68nF 68nF 5.6K
BASSO-L
GND
CREF
22F
June 2001
1/17
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
TDA7469
BLOCK DIAGRAM TDA7469D (SO16)
0.47F IN1-R 25K +6dB / 0dB VOLUME 25K +6dB / -63dB SOFTMUTE CMUTE 0.47F I2C BUS DECODER + LATCHES 0.47F IN1-L 25K +6dB / -63dB x1 VOLUME 25K +6dB / 0dB VREF SUPPLY VS 16 or 32 SUPPLY PVS-L PGND-L 25K 0.47F IN2-L 220F OUT-L x1 220F SUPPLY PGND-R PVS-R 16 or 32 OUT-R
25K 0.47F IN2-R
25K
SCL SDA
25K
D01AU1262
GND
CREF
22F
BLOCK DIAGRAM TDA7469A (SO20)
5.6K 3.3nF 68nF 68nF
TREBLE-R
BASSI-R
BASSO-R
0.47F IN1-R 25K
gm +6dB / 0dB VOLUME 25K +6dB / -63dB TREBLE RB
SUPPLY
PGND-R PVS-R 16 or 32
BASS
x1 220F
OUT-R
BASS_ALC CONTROL 0.47F ALC HALF_WAVE RECTIFIER I2C BUS DECODER + LATCHES SCL SDA
SUPPLY 0.47F IN1-L 25K VOLUME 25K +6dB / 0dB gm TREBLE BASS +6dB / -63dB x1
PVS-L PGND-L 220F OUT-L 16 or 32
RB VREF SUPPLY VS
D01AU1261
3.3nF
TREBLE-L
BASSI-L 68nF 68nF 5.6K
BASSO-L
GND
CREF
22F
2/17
TDA7469
ABSOLUTE MAXIMUM RATINGS
Symbol VS Tamb Tstg Operating Supply Voltage Operating Ambient Temperature Storage Temperature Range Parameter Value 5.5 -10 to 85 -55 to 150 Unit V C C
PIN CONNECTIONS
VS IN1-L TREBLE-L BASSI-L BASSO-L PGND-L OUT-L PVS-L SDA SCL 1 2 3 4 5 6 7 8 9 10
D00AU1235
VS IN1-L IN2-L PGND-L OUT-L PVS-L SDA SCL
1 2 3 4 5 6 7 8
D00AU1236
16 15 14 13 12 11 10 9
CREF IN1-R IN2-R PGND-R OUT-R PVS-R CMUTE GND
20 19 18 17 16 15 14 13 12 11
CREF IN1-R TREBLE-R BASSI-R BASSO-R PGND-R OUT-R PVS-R ALC GND
SO16
VS IN1-L IN2-L MUX-L TREBLE-L BASSI-L BASSO-L PGND-L OUT-L PVS-L SDA SCL 1 2 3 4 5 6 7 8 9 10 11 12
D01AU1246
SO20
24 23 22 21 20 19 18 17 16 15 14 13
CREF IN1-R IN2-R MUX-R TREBLE-R BASSI-R BASSO-R PGND-R OUT-R PVS-R ALC GND
SSO24
THERMAL DATA
Symbol Rth j-pin Parameter Thermal Resistance Junction-pins Value 85 Unit C/W
QUICK REFERENCE DATA
Symbol VS Vps Pomax THD Supply Voltage Power Supply Voltage Maximum output power Total Harmonic Distortion V = 0.1Vrms f = 1KHz Volume Control Treble Control Bass Control Mute Attenuation (1dB step) -63 0 0 90 Parameter Min. 1.8 1.5 5 Typ. 2.4 2.4 8 0.1 Max. 5.0 5.0 0.5 6 12 14 Unit V V mW % dB dB dB dB 3/17
TDA7469
ELECTRICAL CHARACTERISTICS (refer to the test circuit Tamb = 25C, VS =2.4V, all controls flat (G = 0dB), f = 1KHz, unless otherwise specified)
Symbol Parameter Test Condition Min. Typ. Max. Unit
SUPPLY
VS VPS ISQ IPSQ IS IPS RIN AIN Supply Voltage Supply Voltage Supply Current Quiscent Current Po = 0.5mW +0.5mW Po = 0.5mW +0.5mW 1.8 1.5 2.4 2.4 10 1 8 15 5.0 5.0 V V A A mA mA
INPUT STAGE
Input Resistance Input Attenuation Range 35 0 50 65 6 K dB
VOLUME CONTROL
CRANGE AMAX ASTEP GMAX Gstep R1 Control Range Max. Attenuation Step Resolution Max. Gain Step Resolution Muxout Load Resistence -63 61 0.5 63 1 6 2 10 6 65 1.5 dB dB dB dB dB K
BASS CONTROL
Gb RB Gt Rt Control Range Internal Feedback Resistance Max. Boost/on 75.6 14 100.8 126 dB K
TREBLE CONTROL
Control Range Internal Resistance Max. Boost 12 25 dB K
HEADPHONE OUTPUTS
Gout Pomax Output Gain Max Output Power THD = 10% 5 0 8 dB mW V V 0.5 % dB dB dB dB
GENERAL
ENO Output Noise Outout Muted All gains = 0dB; BW = 20Hz to 20KHz flat Av = 0, Vin = 0.1Vrms VS, f = 100Hz PVS, f = 100Hz 5 10 0.1 50 -70 -75 0
THD SC RR1 RR2
Distortion Channel Separation Left/Right Ripple Rejection Ripple Rejection Total Tracking Error
1
BUS INPUTS
VIL VIH IIN VO Input Low Voltage Input High Voltage Input Current Output Voltage (ACK) 0.5 VIN = 0.4V IO = 1.6mA 1.9 -5 5 0.4 V V A V
NOTE1: 1) BASS and TREBLE response: The center frequency and the response quality can be chosen by the external circuitry.
4/17
TDA7469
DATA BYTES Address = (HEX) 10001000 FUNCTION SELECTION: The first byte (subaddress)
MSB D7 X X X X X X D6 X X X X X X D5 X X X X X X D4 B B B B B B D3 0 0 0 0 0 0 D2 0 0 0 0 1 1 D1 0 0 1 1 0 0 LSB D0 0 1 0 1 0 1 VOLUME TREBLE & BASS INPUT & MUTE STAND-BY & OTHERS BASS ALC BASS ALC SUBADDRESS
B = 1 incremental bus; active B = 0 no incremental bus; X = indifferent 0,1
VOLUME
MSB D7 D6 D5 D4 D3 D2 D1 0 0 1 1 LSB D0 0 1 0 1 VOLUME GAIN 6 4 2 0 1 dB STEPS 0 -1 -2 -3 -4 -5 -6 -7 8 dB STEPS 0 -8 -16 -24 -32 -40 -48 -56
0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 1 1 0 0 1 1 0 1 0 1 0 1 0 1
0 0 1 1 0 0 1 1
0 1 0 1 0 1 0 1
VOLUME : +6 x -63dB
5/17
TDA7469
TREBLE & BASS
MSB D7 D6 D5 D4 D3 D2 D1 0 0 1 1 0 0 0 0 1 1 1 1 0 1 1 0 1 0 0 0 1 1 0 0 1 1 0 1 0 1 0 1 0 1 LSB D0 0 1 0 1 TREBLE 12dB 8dB 4dB 0dB BASS 14dB 12dB 10dB 8dB 6dB 4dB 2dB 0dB BASS ALC ALC: VOLUME mode ALC: BASS mode ALC: fc shift ALC: fc nonshift ALC: feedback gain x2 ALC: feedback gain x 1
INPUT SELECT & MUTE
MSB D7 D6 D5 D4 D3 D2 D1 0 0 1 1 LSB D0 0 1 0 1 INPUT SELECT IN1 (0dB) IN1 (-6dB) IN2 (0dB) IN2 (-6dbB) MUTE Input Mute ON Input Mute OFF Output SoftMute ON Output SoftMute OFF Output Mute ON Output Mute OFF HEADPHONE AMP. STAND-BY Headphone Amp. OFF Headphone Amp. ON
1 0 1 0 1 0 1 0
6/17
TDA7469
STAND_BY & OTHERS
MSB D7 D6 D5 D4 D3 D2 D1 LSB D0 1 0 1 0 1 0 0 0 0 STAND-BY ALL Circuits Stop ALL Circuits Work SOFT MUTE CAPACITOR Independent Capacitor Share ALC Capacitor REFERENCE LEVEL adaptive: (VDD-0.7)/2 1.10V 0.85V 0.55V 0.45V ZEROCROSS MODE ON OFF Zerocross Detect Point: Volume Zerocross Detect Point: Bass CREF STAND-BY CREF Circuit Stop CREF Circuit Work
0 0 1 1 1 0 1 0 1 0
0 1 0 1
BASS ALC
MSB D7 D6 D5 D4 D3 D2 D1 LSB D0 1 0 1 0 1 0 0 0 1 1 0 0 1 1 0 1 0 1 0 1 0 1 BASS ALC ALC MODE ON OFF DETECTOR ON OFF RELEASE CURRENT CIRCUIT ON OFF ATTACK TIME RESISTOR 12.5K 25K 50K 100K THRESHOLD THRESHOLD1 THRESHOLD2 THRESHOLD3 THRESHOLD4
BASS ALC
MSB D7 D6 D5 D4 D3 D2 D1 LSB D0 1 0 1 0 BASS ALC ALC FULL FEEDBACK CURRENT ON OFF BIG RELEASE CURRENT ON OFF 7/17
TDA7469
Typical Application Circuit (SSO24)
VS 10F
VS 0.1F
1
24
CREF 22F
0.47F IN1-L 0.47F IN1-L MUX-L
IN1-L
2
23
IN1-R
0.47F IN1-L 0.47F IN1-L MUX-R
IN2-L MUX-L
3 4 5
22 21 20
IN2-R MUX-R
TREBLE-L 10K 3.3nF
TREBLE-R 3.3nF 10K
6 68nF 5.6K 10F PVS-L PVS-L VDD BASSI-L BASSO-L 68nF 0.1F 10 PGND-L 7 8
19 BASSI-R 18 BASSO-R 68nF 17 PGND-R 0.1F 15 PVS-R 14 ALC 0.47F 13 9 OUT-L STEREO MINI JAC OUT-R 16 GND Jumper 0.1F 10F PVS-R 68nF 5.6K
SDA SCL
SDA SCL
11 12
4.7
0.1F
Jumper
4.7
16
220F
220F
16
32 100pF
32 100pF
1nF
1nF
OUT-L For electrical measurements
OUT-R
D00AU1243
For listering tests
8/17
TDA7469
Typical Application Circuit (SO16)
VS VS GND C1 10F 35V VS(A) C2 0.1F PGNDL C3 0.47F IN1-L C4 0.47F IN2-L VS(A) VS(B)
1 2
VS 1 4 16 CREF C16 22F 10V
IN1L
2
15
IN1R
C15 0.47F IN1-R C14 0.47F IN2-R
IN2L
3 14 6 13
IN2R
PVSL C7 10F 35V C8 0.1F PVSR C11 10F 35V R2 1K R3 1K C10 0.1F SDA CMUTE C9 0.47F
PGNDR C13 220F 10V OUT-R
VS(B)
11
12
OUTR C12 0.1F R5 4.7
VS
7 10 5 8 9
OUT-R/L
OUTL C6 0.1F R1 4.7 C5 220F 10V
SDA SCL DGND VS
4 3 2 1 I2C VS R4 30
SCL GND
OUT-L
D01AU1249
Typical Application Circuit (SO20)
VS VS GND C1 10F 35V C3 0.47F IN1-L C5 3.3nF VS(A) C2 0.1F VS(B)
1 2
VS 1 IN1L 20 CREF
C22 22F 10V
2
19
IN1R
C21 0.47F IN1-R
TREBLEL
3
C6 68nF
18
TREBLER C19 3.3nF
BASSIL
4
R1 5.6K
C7 68nF
17
BASSIR
BASSOL
5
16 15
BASSOR PGNDR
C18 68nF
R7 5.6K
PGNDL VS(A) PVSL C10 10F 35V C11 0.1F PVSR C14 10F 35V R3 1K R4 1K SDA SCL DGND VS 4 3 2 1 I2C VS R5 30 C13 0.1F SDA ALC C12 0.47F
6 8
C17 68nF VS
100K 14 13 OUTR C16 0.1F R6 4.7
C15 OUT-R 220F 10V
VS(B)
OUT-R/L VS 9 12 7 10 11 100K OUTL C9 0.1F R2 4.7 VS
C8 OUT-L 220F 10V
SCL GND
D01AU1250
9/17
TDA7469
THD+Noise vs Amplitude @Vcc 2.5V, Rload 32
THD(%)
10 5 5
THD+Noise vs Amplitude @Vcc 2.5V, Rload 16
THD(%)
10
2
2
1
0.5
Vcc=2.5V Rload= 16ohm f=1KHz
1
0.5
0.2
0.2
0.1
0.1
0.05
0.05
Vcc=2.5V Rload=32ohm f=1KHz
0.02 0.01
0.02 0.01
0.005
0.005
0.002
0.002
0.001 5m 10m 15m 20m 25m 30m
0.001 2m 4m 6m 8m 10m 12m 14m 16m 18m 20m
Pout ( W )
Pout ( W )
THD+Noise vs Amplitude @Vcc 2.8V, Rload 16
THD(%)
10 5
THD+Noise vs Amplitude @Vcc 2.8V, Rload 32
THD(%)
10 5
2
2
1
1
0.5
0.2
Vcc=2.8V Rload=16ohm f=1KHz
0.5
0.2
0.1
0.1
0.05
0.05
Vcc=2.8V Rload=32ohm f=1KHz
0.02
0.02
0.01
0.01
0.005
0.005
0.002
0.002
0.001 5m 10m 15m 20m 25m 30m 35m
0.001 5m 10m 15m 20m 25m 30m
Pout ( W )
Pout( W )
10/17
TDA7469
TDA7469A Components Layout
TDA7469A P.C. Board Layout (Top view)
11/17
TDA7469
TDA7469A P. C. Board (Backside view)
TDA7469D Components Layout
12/17
TDA7469
TDA7469D P. C. Board (Top View)
TDA7469D P. C. Board (Backside view)
13/17
TDA7469
mm DIM. MIN. A A1 A2 B (2) C D (1) E E1 (1) e L L1 k ddd 0.55 0.05 1.65 0.22 0.09 7.9 7.4 5.0 8.2 7.8 5.3 0.65 0.75 1.25 0.95 0.022 1.75 1.85 0.38 0.25 8.5 8.2 5.6 TYP. MAX. 2.00 0.002 0.060 0.009 0.003 0.31 0.29 0.20 0.32 0.30 0.21 0.025 0.029 0.05 0.004 0.079 0.015 0.01 0.33 0.32 0.22 MIN. TYP. MAX. 0.079 inch
OUTLINE AND MECHANICAL DATA
0 (min), 4 (typ), 8 (max) 0.1 0.004
(1) "D and E1" dimensions do not include mold flash or protusions, but do include mold mismatch and are mesaured at datum plane "H". Mold flash or protusions shall not exceed 0.20mm in total (both side). (2) "B" dimension does not include dambar protusion/intrusion.
SSO24 Shrink Small Outline Package
SEATING PLANE C
0.25mm GAGE PLANE
DATUM PLANE H
A2 A1
A K
B
e
ddd
C
L E1 L1
C
D
24
13
E
1
1
2
SSO24ME
0053237
14/17
TDA7469
mm DIM. MIN. A A1 B C D E e H h L K 10 0.25 0.4 2.35 0.1 0.33 0.23 12.6 7.4 1.27 10.65 0.75 1.27 0.394 0.010 0.016 TYP. MAX. 2.65 0.3 0.51 0.32 13 7.6 MIN. 0.093 0.004 0.013 0.009 0.496 0.291 0.050 0.419 0.030 0.050 TYP. MAX. 0.104 0.012 0.020 0.013 0.512 0.299 inch
OUTLINE AND MECHANICAL DATA
SO20
0 (min.)8 (max.)
L
h x 45
A B e K H D A1 C
20
11 E
1
0 1
SO20MEC
15/17
TDA7469
mm DIM. MIN. A A1 B C D E e H h L K 10 0.25 0.4 2.35 0.1 0.33 0.23 10.1 7.4 1.27 10.65 0.75 1.27 0.394 0.010 0.016 TYP. MAX. 2.65 0.3 0.51 0.32 10.5 7.6 MIN. 0.093 0.004 0.013 0.009 0.398 0.291 0.050 0.419 0.030 0.050 TYP. MAX. 0.104 0.012 0.020 0.013 0.413 0.299 inch
OUTLINE AND MECHANICAL DATA
0 (min.)8 (max.)
SO16 Wide
L
h x 45
A B e K H D A1 C
16
9
E
1
8
16/17
TDA7469
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specification mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. The ST logo is a registered trademark of STMicroelectronics (c) 2001 STMicroelectronics - Printed in Italy - All Rights Reserved STMicroelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco Singapore - Spain - Sweden - Switzerland - United Kingdom - United States. http://www.st.com
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