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Ordering number : ENN6568
Monolithic Linear IC
LA1833N, 1833NM
System-on-Chip Tuner IC for Home Stereo Systems
Overview
The LA1833N/NM is an AM/FM IF and MPX system-onchip IC that supports electronic tuning for home stereo systems. It is optimal for use in auto-seek systems that use SD (station detect) and IF counting in parallel.
-- FM total harmonic distortion detuning characteristics and signal-to-noise ratio improved over those of the LA1833
Package Dimensions
unit: mm 3112A-MFP24S
[LA1833N]
24 13
Functions
* AM: RF amplifier, mixer, oscillator, IF amplifier, detector, AGC, SD, oscillator buffer, IF buffer, and stereo IF output * FM IF: IF amplifier, quadrature detector, S meter, SD, S-curve detector, IF buffer * MPX: PLL stereo decoder, stereo indicator, forced mono, VCO stop, audio muting, adjacent channel interference reduction function, pilot canceller
5.4
12.5
0.15
Features
* Improvements over the LA1832 -- The MPX VCO circuit has been integrated on the same IC (no ceramic element required) -- Built-in adjacent channel interference reduction function (114 kHz, 190 kHz) -- Built-in pilot canceler function (19 kHz) -- AM and FM output levels can be set independently -- Improved FM reception characteristics (IF beating improved) * Other features -- Pin arrangement nearly identical to that of the LA1832 -- AM coil specifications can be the same as those used for the LA1832. -- ST operating dynamic range improved over that of the LA1833
0.35 1.0
SANYO: MFP24S (300 mil)
unit: mm 3067A-DIP24S
[LA1833NM]
21.0
24
13
7.62 6.4
0.1 1.5
(0.75)
0.63
1
12
1.7max
7.6
1
0.9
12
(0.71)
1.78
0.48
0.95
SANYO: DIP24S (300 mil)
Any and all SANYO products described or contained herein do not have specifications that can handle applications that require extremely high levels of reliability, such as life-support systems, aircraft's control systems, or other applications whose failure can be reasonably expected to result in serious physical and/or material damage. Consult with your SANYO representative nearest you before using any SANYO products described or contained herein in such applications. SANYO assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all SANYO products described or contained herein.
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
D1500RM (OT) No. 6568-1/10
0.51min
3.3 3.9max
(3.25)
0.25
LA1833N, 1833NM
Specifications
Maximum Ratings at Ta = 25C
Parameter Maximum supply voltage Symbol VCC max (LA1833N) Allowable power dissipation Pd max (LA1833NM) (Ta 45C) (LA1833NM) (Ta = 70C) Operating temperature Storage temperature Topr Tstg Conditions Ratings 9 400 400 270 -20 to +70 -40 to +125 Unit V mW mW mW C C
Operating Conditions at Ta = 25C
Parameter Recommended supply voltage Operating supply voltage range Symbol VCC VCC op Conditions Ratings 5 4 to 8 Unit V V
Electrical Characteristics at VCC = 5 V, in the specified test circuit
Parameter Symbol Conditions Ratings min typ max Unit
[FM Mono Characteristics: fc = 10.7 MHz, fm = 1 kHz] Current drain Demodulator output Channel balance Total harmonic distortion (mono) Signal-to-noise ratio AM rejection ratio Input limiting voltage SD LED on sensitivity IF counter buffer output Muting attenuation ICCO-FM VO-FM C.B-mono THD-FM S/N-FM AMR No input 100 dB, 100% mod. The pin 13 output 100 dB, 100% mod. The ratio (pin 13 output)/(pin 14 output) 100 dB, 100% mod. The pin 13 output 100 dB, 100% mod. The pin 13 output 100 dB, AM = 30% mod. fm = 1 kHz 70 45 18 210 -1.5 28 330 0 0.5 78 63 34 32 200 42 275 76 42 52 400 38 420 1.5 1.5 mA mVrms dB % dB dB dB dB mVrms dB
100 dB, 100% mod. The pin 13 output -3dBL. S Referenced to the output, when the input is down by -3 dB SD-On-FM VIFBuff-FM 100 dB, the pin 10 output Mute Att 100 dB, 100% mod. fm = 1 kHz
[Stereo Characteristics: fc = 10.7 MHz, 100 dB, fm = 1 kHz, L + R = 90%, pilot = 10%] Separation Stereo on level Total harmonic distortion (main) Adjacent channel interference rejection ratio Adjacent channel interference rejection ratio Carrier leakage Sep ST-on Left channel modulated, the ratio (pin 13 output)/(pin 14 output) The pilot modulation level such that V7 becomes less than 0.7 V 28 1.5 42 3.5 0.7 36 41 38 44 5.5 1.5 dB % % dB dB dB
THD-main L + R modulation, the pin 13 output Brej-3rd Brej-5th CL fs = 113 kHz, Vs = 90%, Pilot = 10%; the pin 13 output with respect to an L - R modulated 1 kHz demodulator output fs = 189 kHz, Vs = 90%, Pilot = 10%; the pin 13 output with respect to an L - R modulated 1 kHz demodulator output L + R = 90%, De-emph asis 50 s, Pilot = 10%
[AM Characteristics: fc = 1000 kHz, fm = 1 kHz] Current drain Detector output Detector output Signal-to-noise ratio ICCO-AM No input 11 40 90 16 48 22 80 160 21 54 0.4 0.5 14 140 140 24 200 285 400 1.1 1.3 34 33 160 230 mA mVrms mVrms dB dB % % dB mVrms mVrms
VO-AM (1) 23 dB, 30% modulation. The pin 13 output VO-AM (2) 80 dB, 30% modulation. The pin 13 output S/N-AM (1) 23 dB, 30% modulation. The pin 13 output S/N-AM (2) 80 dB, 30% modulation. The pin 13 output THD-AM (1) 80 dB, 30% modulation. The pin 13 output THD-AM (2) 100 dB, 30% modulation. The pin 13 output SD-On-AM VOSC-AM No input, the pin 24 output VIFBuff-AM 80 dB, no modulation, the pin 10 output
Total harmonic distortion SD LED on sensitivity Local oscillator buffer output IF counter buffer output
No. 6568-2/10
LA1833N, 1833NM Pin Descriptions
Pin No. Pin Voltage (V) Functional description Equivalent circuit
1 1 FM IF input Vreg The input impedance, ri, is 330 3
ILA00220
2
2
AM MIX output
VCC
The mixer coil is connected between pins 2 and 9
ILA00221
3
3
REG
2.1
Vreg = 2.1 V
ILA00222
4 4 AM IF input Vreg The input impedance, ri, is 2 k
ILA00223
5
GND
0 6 7
Tu-LED 6 7 ST-LED Also functions as the AM stereo IF output VCC
These are active-low open-collector outputs. Set up the current flowing in to these pins to exceed 100 A.
ILA00224
Recommended ceramic discriminators 8 FM-DET VCC - 2.1 FCD1070MA11UK2L (TDK) CDA10.7MG86N (Murata Mfg. Co., Ltd.) 8
ILA00225
9
VCC
5.0
AM/FM IF counter output 10 Also functions as a control switch Also functions as the muting switch 0
V10 0.5 V: Reception state (normal) 1.4 V V10 2.2 V: Muting on state. V10 3.5 V: Muting on and IF counter on (seek state).
ILA00226
10
Continued on next page. No. 6568-3/10
LA1833N, 1833NM
Continued from preceding page.
Pin No. Pin Voltage (V) Functional description Equivalent circuit 11 Phase comparator filter connection 11 Also functions as the FM/AM switching input VCC - 1.0 The IC switches to AM mode if a current in excess of 200 A flows from this pin
ILA00227
Pilot detector filter connection 12 Also functions as the forced mono setting Also functions as the VCO stop control VCC - 1.0
12 The IC switches to forced mono mode if a current in excess of 50 A flows from this pin. The VCO circuit is stopped if a current in excess of 200 A flows from this pin.
ILA00228
13 14
Left output Right output
1.8
The output impedance, ro, is 3.3 k
13
(
14
)
ILA00229
15
15
Pilot canceller output
Vreg
3
ILA00230
16
Decoder input
Vreg
Inverting input RNF = 20 k 16
RNF
ILA00231
17 17 PLL input Vreg The input impedance, ri, is 20 k
ILA00232
18 The output impedance, ro, is 2.3 k. 18 FM demodulator output Vreg The separation can be adjusted by changing the value of the capacitor connected between this pin and ground.
ILA00233
100V 0 (FM) 1.5 (AM)
19
AM detector output
The output impedance, ro, is 10 k 19
ILA00234
Continued on next page.
No. 6568-4/10
LA1833N, 1833NM
Continued from preceding page.
Pin No. Pin Voltage (V) Functional description Equivalent circuit
S meter 20 Also functions as the AM AGC
Internal load resistor R = 13.9 k. 0.2 (FM) 0.9 (AM) The SD response speed during seek operations is set by the value of the external capacitor connected to pin 20. 20 R
ILA00235
21 21 AM RF-IN Vreg Pin 21 and pin 22 (the AFC voltage) are used at the same potential
ILA00236
22
AFC
Vreg
The FM SD bandwidth can be adjusted by an external resistor connected between pin 22 and pin 3 (the regulator voltage). Note: A bandwidth of 180 kHz or higher is appropriate for the FM SD bandwidth.
22
ILA00237
23 The oscillator coil is connected between pin 23 and pin 9 (the VCC voltage). 23 OSC VCC Note: The oscillator coil impedance (secondary side) must be at least 5 k.
ILA00238
Oscillator buffer 24 Also functions as the FM SD adjustment VCC - 1.4
The FM SD sensitivity can be adjusted with an external resistor on pin 24. R = 200 Note: The resistance of the pin 24 external resistor must be at least 3.3 k.
R 24
ILA00239
No. 6568-5/10
OSC BUFF
VT
Block Diagram
+
FM SD ADJ RF + V-SM + R L
OSC
FM BAND-W 21 20 19 18 17 16 15 14 13
24
23
22
ALC AM RF. AMP
AM OSC AGC DECODER ANTI-BIRDIE
AM MIX
BUFF
PILOT CANCEL
AM IF
AM DET STEREO SW
P-DET O
LEVEL DET AM / FM IF BUFF COMP VCO 304kHz TUNING DRIVE
LA1833N, 1833NM
S-CURVE
FF 38k
FF 19k 2
FF 19k0
PILOT DET
FM IF
FM DET
REG
GND
VCC
1
2
3
4
5
6
7
8
9
10
11 FM
12
450kHz TU-LED ST-LED
ST + AM + AM / FM IF-BUFF SEEK MUTE VCC + MONO
FM-IN (10.7MHz)
ILA00240
+
No. 6568-6/10
AM stereo IF output
(4.0 to 8.0 V)
Test Circuit
0.047F 50
AM-IN (1MHz) A 22F 39m + 65k + 0.01F 0.1F 0.015F 20k 21 20 19 18 17 16 15 14 10F 20k 0.0047F + A 0.047F 1000pF 4.7F 0 dB LPF LPF
L OUT
OSC BUFF 3.3F
39pF 20pF
5.6k
1000pF
HW50425
R OUT
24
23
22
13
*
*
*
*
LA1833N, 1833NM
LA1833N / 1833NM
*
4 TU-LED V-SD V-ST ST-LED 100 5 6 7 8
*
*
*
*
*
*
*
*
9
*
10 11 1F + 3k + 1000pF 12 Top view 1F
1
2
3
FM-IN (10.7MHz)
300
75
0.047F 50k 1000pF 50k
MFP = 33
0.47F NORMAL 20pF AM / FM IF-BUFF
+ FM AM MONO
HW6215
+
33F
0.047F
AM IF
CDA10.7MG1-B (For the DUT socket printed circuit board)
SEEK VCC 5.0 V
No. 6568-7/10
The places that differ with the LA1833 are (1) the value of the pin 8 resistor and (2) the circuits in the vicinity of pins 17 and 18. *: Pins with the same functionality as those on the LA1832.
0.015F
6.8k
ILA00241
LA1833N, 1833NM
FM IF I/O Characteristics
0 --10 --20 3.0
FM IF THD Detuning Characteristics
Total harmonic distortion, THD -- %
S
2.5
Output, -- dBV
--30 --40 --50 --60 --70 --80 --90 0 50 100 150 ILA00242 12
2.0
1.5
AM
1.0
0.5
N
0 10.55
10.6
10.65
10.7
10.75
10.8
10.85
Input -- dB
20
Frequency -- MHz
ILA00243
FM IF VCC Characteristics
FM IF VCC Characteristics
60
Total harmonic distortion, THD -- %
SD on range, Qs -- dB 3 dB limiting sensitivity, Qs -- dB
Demodulator output, VO -- dBm
55 50 45 40 35 30 25 20 2 4 6 8 10 ILA00245 1.6 1.4 1.2 1.0 0.8
0
S
10
SD on range
3dB LS
--20
8
--40
6
Qs
--60
4
AM
--80
N
2
THD
--100 2 4 6 8 0 10 ILA00244 10
Supply voltage, VCC -- V
Supply voltage, VCC -- V
AM Characteristics
20 0
AM VCC Characteristics
SD, AGC -- V Total harmonic distortion, THD -- %
--10 --20
0
8
Vout
Output, -- dBV
Output, -- dB
VO
0%M o d)
--20
Mod)
6
--30 --40 --50 --60
THD(30%
THD (8
--40
4
THD
) (80%Mod
0.6 0.4 0.2 0 10 ILA00247
--60
AGC
Noise SD - OUT
0 20 40 60 80 100 120
2
THD(30%Mod)
Noise
--70 --80 2 4 6 8
--80
0 140
Input -- dB
80 70
ILA00246 100
AM VCC Characteristics
3 dB limiting sensitivity, 3dBLS -- dB Signal-to-noise ratio, SD on, 3dBLS -- dB
Supply voltage, VCC -- V
FM IF Temperature Characteristics
Useable sensitivity, Qs -- dB SD sensitivity, SD -- dB
80
60 50 40
S/N
AGC
60
SD -- ON
30 20 10 0 2 4
SD -- ON
40
Useable sensitivity
--3dB LS
20
SD - OUT
6 8 10 ILA00248
0 --40
--20
0
20
40
60
80
100
Supply voltage, VCC -- V
Ambient temperature, Ta -- C
ILA00249
No. 6568-8/10
LA1833N, 1833NM
FM IF Temperature Characteristics FM ST VCC Characteristics
100d
2.0
B
Channel separation, Sep -- dB
2.5
60
3.0
50
2.5
Pilot ON
40
Sep
2.0
1.5
50dB
30
1.5
1.0
20
1.0
0.5
0dB
10 0 --40
THD
--20 0 20 40 60 80
0.5 0 100
0 --40
--20
0
20
40
60
80
100
Ambient temperature, Ta -- C
60
ILA00250 3.0
Ambient temperature, Ta -- C
ILA00251
AM Temperature Characteristics
80dB
AM Temperature Characteristics
Signal-to-noise ratio, S/N -- dB SD on level -- dB
50
2.5
AGC voltage, VAGC -- V
80dB
40
2.0
30
1.5
20dB
SD
20
N -- O 23dB
0dB
1.0
10
0.5
0 --40
--20
0
20
40
60
80
100
0 --40
--20
0
20
40
60
80
100
Ambient temperature, Ta -- C
10
ILA00252 50
Ambient temperature, Ta -- C
ILA00253
THD -- fm
TH Ds t
Sep -- fm
Total harmonic distortion, THD -- %
Channel separation, Sep -- dB
40
30
1.0
20
THD main
Sep R L Sep
THD sub
0.1 10
10
100
1000
10000
100000 ILA00254
0 10
100
1000
10000
100000 ILA00255
Modulation frequency, fm -- kHz
10
Modulation frequency, fm -- kHz
100
THD -- VCC
Channel separation, Sep -- dB Signal-to-noise ratio, S/N -- dB
Sep, S / N -- VCC
Sep R
S/N
Total harmonic distortion, THD -- %
7 5 3 2 80
Sep L
60
1.0 7 5 3 2 0.1 0 1 2 3 4
sub
T
s HD
t
TH D
TH
D
m
ain
40
20
THD mono
0 5 6 7 8 9 2 4 6 8 10 ILA00257
Supply voltage, VCC -- V
ILA00256
Supply voltage, VCC -- V
No. 6568-9/10
Total harmonic distortion, THD, pilot on -- %
3.0
70
3.5
S-meter voltage, VSM -- V
LA1833N, 1833NM
VL on, off -- VCC Capture Range Characteristics
CR+
6 2.5
3.0
8
Stereo sensitivity, VL -- %
Capture range, CR -- %
4 2 0 --2
2.0
VL on
1.5
1.0
VL off
CR---4 --6
0.5
0 2 4 6 8 10 ILA00258
--8 10
15
20
25
30
35 ILA00259
Supply voltage, VCC -- V
Pilot input voltage -- mV
Specifications of any and all SANYO products described or contained herein stipulate the performance, characteristics, and functions of the described products in the independent state, and are not guarantees of the performance, characteristics, and functions of the described products as mounted in the customer's products or equipment. To verify symptoms and states that cannot be evaluated in an independent device, the customer should always evaluate and test devices mounted in the customer's products or equipment. SANYO Electric Co., Ltd. strives to supply high-quality high-reliability products. However, any and all semiconductor products fail with some probability. It is possible that these probabilistic failures could give rise to accidents or events that could endanger human lives, that could give rise to smoke or fire, or that could cause damage to other property. When designing equipment, adopt safety measures so that these kinds of accidents or events cannot occur. Such measures include but are not limited to protective circuits and error prevention circuits for safe design, redundant design, and structural design. In the event that any or all SANYO products (including technical data, services) described or contained herein are controlled under any of applicable local export control laws and regulations, such products must not be exported without obtaining the export license from the authorities concerned in accordance with the above law. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, or any information storage or retrieval system, or otherwise, without the prior written permission of SANYO Electric Co., Ltd. Any and all information described or contained herein are subject to change without notice due to product/technology improvement, etc. When designing equipment, refer to the "Delivery Specification" for the SANYO product that you intend to use. Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for volume production. SANYO believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties.
This catalog provides information as of December, 2000. Specifications and information herein are subject to change without notice. PS No. 6568-10/10

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