LA1823M [SANYO]
Single-Chip Tuner ICs for Use in Radio Cassette Recorder;
| 型号： | LA1823M |
| 厂家： | 
SANYO SEMICON DEVICE |
| 描述： | Single-Chip Tuner ICs for Use in Radio Cassette Recorder 光电二极管 商用集成电路 |
| 文件： | 总12页 (文件大小：139K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Ordering number : EN6854A
Monolithic Linear ICs
LA1823
LA1823M
Single-Chip Tuner ICs
for Use in Radio Cassette Recorder
Overview
The LA1823 and the LA1823M are single-chip tuner ICs that incorporate FM/AM and MPX circuits and support
electronic tuning. The built-in MPX-VCO allows these ICs to be adjustment-free and to require no external components.
Features
• AM, FM frontend/IF and MPX integrated in a single-chip.
• Built-in MPX VCO circuit
• Electronic tuning (AM oscillator output, AM/FM IF output)
• Adjustment-free FM detection (uses a ceramic discriminator)
• Packages : DIP24S (300mil) [LA1823]
MFP24S (300mil) [LA1823M]
Functions
AM
: RF amplifier, mixer, oscillator, oscillator buffer, IF amplifier, detector, AGC, IF count buffer output.
FM-RF : RF amplifier, mixer, and oscillator.
FM-IF : IF amplifier, quadrature detector, S-meter, and IF counter buffer output.
MPX : PLL stereo decoder, stereo indicator, forced monaural, VCO on chip, Audio mute.
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Maximum supply voltage
Indicator drive current
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
Conditions
Ratings
Unit
V
V
max
7.0
20
CC
I
Pin 8
mA
mW
°C
LED
Pd max
Topr
Ta ≤ 70°C
300
-20 to +70
-40 to +125
Tstg
°C
Any and all SANYO Semiconductor 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 Semiconductor representative
nearest you before using any SANYO Semiconductor products described or contained herein in such
applications.
SANYO Semiconductor 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 Semiconductor
products described or contained herein.
N1506 MS PC B8-8120, B8-5863 No.6854-1/12
LA1823, LA1823M
Operating Conditions at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
V
Recommended supply voltage
Operation supply voltage range
V
4.5
CC
V
op
1.8 to 6.0
V
CC
Operating Characteristics at Ta = 25°C, V
= 4.5V, in the specified test circuit
CC
Ratings
typ
Parameter
Symbol
Conditions
Unit
min
max
Quiescent supply current
FM-mode quiescent current
AM-mode quiescent current
I
I
(FM)
CC
10.0
15.0
9.2
20.0
14.5
mA
mA
(AM)
6.5
CC
FM front-end characteristics at fc = 98MHz, V = 60dBµV EMF, fm = 1kHz, 22.5kHz dev
IN
Local oscillator voltage
V
No. input, fosc = 108.7MHz,
the pin 20 output
100
12
mVrms
OSC
Input limiting voltage
3dB L.S.
Referenced to 22.5kHz dev, a 3dB down input
dBµV EMF
FM IF characteristics (monaural) at fc = 10.7MHz, V = 100dBµV, fm = 1kHz, 75kHz dev
IN
Demodulation output
Signal-to-noise ratio
V
The pin 16 output
The pin 16 output
The pin 16 output
125
63
165
72
210
1.5
mVrms
dB
O
S/N
Total harmonic distortion
(monaural)
THD
0.5
%
Input limiting voltage
IF count buffer on level
IF count buffer output
3dB L.S.
Referenced to 75kHz dev, a 3dB down input
No modulation
31
35
38
45
45
55
dBµV
dBµV
IF buff on
V
buff
No modulation, the pin 7 output
120
180
240
mVrms
IF
FM IF characteristics (stereo) at fc = 10.7MHz, V = 100dBµV, fm = 1kHz, 75kHz dev, L+R = 90%, PILOT = 10%
IN
Separation
SEP
ST-ON
THD
Left channel modulated, the pin 16 and pin 17
outputs
25
40
3.5
0.5
dB
%
Stereo on level
The pilot modulation such that the pin 8 voltage
becomes lower than 0.5V
2.4
7.2
1.7
Total harmonic distortion (stereo)
Main modulation, the pin 16 output
%
AM characteristics at fc = 1000kHz, fm = 1kHz, mod = 30%
Detector output
V
V
1
2
V
V
V
V
V
= 23dBµV, the pin 16 output
= 80dBµV, the pin 16 output
= 23dBµV, the pin 16 output
= 80dBµV, the pin 16 output
= 80dBµV, the pin 16 output
14
50
15
47
26
75
50
mVrms
mVrms
dB
O
IN
IN
IN
IN
IN
120
O
Signal-to-noise ratio
S/N1
S/N2
THD
20
54
dB
Total harmonic distortion
OSC buffer output
0.5
100
25
1.5
160
32
%
V
buff
No input, the pin 8 output
No modulation
80
15
mVrms
dBµV
mVrms
OSC
IF buff on
buff
IF count buffer on level
IF count buffer output
V
V
= 80dBµV, no modulation, the pin 7 output
110
180
220
IF
IN
No.6854-2/12
LA1823, LA1823M
Package Dimensions
unit : mm (typ)
3067B
[LA1823]
21.0
24
13
12
1
0.95
0.9
(0.71)
1.78
0.48
SANYO : DIP24S(300mil)
3112B
[LA1823M]
12.5
24
13
1
12
1.0
0.15
0.35
(0.75)
SANYO : MFP24S(300mil)
No.6854-3/12
LA1823, LA1823M
Block Diagram
No.6854-4/12
LA1823, LA1823M
Sample Application Circuit Diagram
F M - D E T
Ω
3 . 3 k
1 0 0 p F
F M - O S C
1 2 p F
S V C 2 0 1
4 7 0 p F
F M - R F
8 p F
F µ
0 . 0 4 7
A M - O S C
1 0 0 0 p F
S V C 2 0 1
No.6854-5/12
LA1823, LA1823M
Measurement Circuit Diagram
C D A 1 0 . 7 M G 1
Ω
3 . 3 k
1 0 0 p F
1 0 0 k
Ω
S A - 1 5 1
1 2 p F
S V C 2 0 1
4 7 0 p F
S A - 1 4 9
8 p F
F µ
0 . 0 4 7
S A - 1 8 1
1 0 0 0 p F
S V C 2 0 1
No.6854-6/12
LA1823, LA1823M
Coil specifications (bottom view)
• FM-BPF : SA-309 (Sumida) 88MHz to 108MHz
• FM-RF : SA-149 (Sumida) 3.6mm diameter, air core, 0.6mm wire, 41/2 T
• FM-OSC : SA-151 (Sumida) 3.6mm diameter, air core, 0.6mm wire, 31/2 T
• FM-IF filter, discriminator :
SK107M1-AE-10, CDF107F-AE-029 (Toko)
SFE10.7MA5, CDA10.7MG1-A (Murata) : tentative
• AM-OSC : SA-181 (Sumida)
: L7BRS-3132AQ (Toko)
6-4
37T
74T
3-1
64T
32T
S
S
3-1
6-4
VC
3
4
pin3
VC
3
2
1
4
6
pin3
0.06UEW
fo = 796kHz
Qo ≥ 80
L = 140µH
0.06-2UEW
fo = 796kHz
Qo ≥ 65
L = 140µH
2
1
6
GND
V
GND
V
CC
CC
S
S
• AM-MIX : SA-1136 (Sumida)
: PCFAZ-082 (Toko)
3-2
122T
9T
1-2
47T
100T
12T
S
S
S
4-6
2-3
3
4
3
4
CF
2-1
62T
4-6
0.06UEW
fo = 450kHz
180pF internal
2
GND
V
fo = 450kHz, Qo ≥ 65
2
1
V
CC
CC
180pF internal
With AM-IF filter
1
6
pin9
6
pin9
GND
S
S
ACFA-450L08
• AM-IF filter : SFU450B (Murata)
• MW Bar-antenna : C8E-A0105 (Toko)
1-2
67T
9T
3-4
fo = 796kHz
Qu = 180min
L = 260µH
S
S
1
2
3
4
VC
GND Pin1
Pin2
No.6854-7/12
LA1823, LA1823M
Pin Descriptions and Quiescent Voltage at V
= 4.5V
CC
Quiescent
voltage (V)
Pin
Function
Remarks
Equivalent circuit
number
AM
1.2
FM
1.2
1
AM-RF input
Connect the AM antenna coil between this
pin and pin 2 (Reg)
2
1
2
Reg
1.2
1.2
2
3
AM-OSC
4.5
4.5
Connect the AM oscillator coil between this
3
4
pin and pin 4 (V 1)
CC
4
5
V
1
4.5
2.4
4.5
2.2
AM/FM-IF/MPX block V
CC
CC
FM-MIX output
Rout = 270Ω
5
Rout
6
7
GND1
0
0
AM/FM-IF/MPX block ground
IF buffer output
and mute switch
4.5
4.5
V7 ≥ 1.3V : IF buffer output and muting on
7
Continued on next page.
No.6854-8/12
LA1823, LA1823M
Continued from preceding page.
Quiescent
voltage (V)
Pin
Function
number
Remarks
Equivalent circuit
AM
4.5
FM
4.5
8
Stereo indicator,
AM-oscillator
buffer output
Active-low
Open-collector output
8
AM oscillator signal is output in AM mode
9
AM-MIX output
4.5
4.5
Connect the AM mixer coil between this pin
9
4
and pin 4 (V 1)
CC
10
FM-IF input
1.2
1.2
Rin = 330Ω
10
2
Rin
11
AM-IF input
1.2
1.2
Rin = 2kΩ
11
2
Rin
12
AM-AGC output
and FM signal
meter output
0.4
0.1
Internal load resistance
R = 16.6kΩ
12
R
13
FM-DET
3.9
3.7
Recommended ceramic discriminator :
CDF107F-AE-029 (Toko)
CDA10.7MG1-A (Murata, tentative)
13
Continued on next page.
No.6854-9/12
LA1823, LA1823M
Continued from preceding page.
Quiescent
voltage (V)
Pin
Function
number
Remarks
Equivalent circuit
AM
2.9
FM
3.8
14
Pilot detector filter
(forced monaural
mode)
Forced monaural mode when pin 14 is
connected to ground
14
15
Phase comparator
filter
0
3.8
FM mode is when pin 15 is open, and AM
mode is when pin 15 is connected to ground
15
(AM/FM switch)
16
17
L output
R output
1.2
1.2
Rout = 7.5kΩ
16
17
Rout
18
MPX input
1.2
1.2
Rin = 50kΩ
18
Rin
19
AM/FM detector
output
0.3
1.0
Output impedance
AM : Rout = 50kΩ
FM : Rout = 500Ω
Rout (FM)
19
The channel separation can be adjusted with
an external capacitor connected between
this pin and ground
Rout (AM)
20
FM-OSC
4.5
4.4
Connect the FM oscillator coil between this
21
20
pin and pin 21 (V 2)
CC
Continued on next page.
No.6854-10/12
LA1823, LA1823M
Continued from preceding page.
Quiescent
voltage (V)
Pin
Function
number
Remarks
Equivalent circuit
AM
4.5
FM
4.4
21
V
2
FM-FE block V
CC
CC
R
Power is supplied from pin 4 (V 1) via
CC
external resistor (10Ω)
21
4
22
24
FM-RF output
FM-RF input
4.5
0
4.4
0.9
Connect the FM-RF coil between this pin
and pin 21 (V 2)
CC
22
21
Rin = 1.8kΩ
24
Rin
23
GND2
0
0
FM-FE block ground
FM Characteristics
FM Characteristics
0
5
4
V
=4.5V
CC
fc=98MHz
fm=1kHz
Signal
--20
3
--40
--60
AM out
2
1
Noise
V
=4.5V
CC
fc=98MHz
--80
THD(75k)
fm=1kHz, 22.5kHz dev
AM=30%mod
THD(22.5k)
--100
0
--20
0
20
40
60
80
100
120
140
--20
0
20
40
60
80
100
120
140
Input – dBµV EMF
Input – dBµV EMF
AM Characteristics
AM Characteristics
0
5
4
3
2
1
2.5
2.0
V
=4.5V
V
CC
=4.5V
CC
fc=1000kHz
fm=1kHz, 30%mod
fc=1000kHz
fm=1kHz, 30%mod
Signal
--20
1.5
1.0
--40
--60
Noise
--80
0.5
0
V
AGC
--100
0
--20
0
20
40
60
80
100
120
140
--20
0
20
40
60
80
100
120
140
Input – dB/m
Input – dB/m
No.6854-11/12
LA1823, LA1823M
FM Stereo Characteristics
FM Stereo Characteristics
=4.5V
fc=98MHz, Vin=60dBµV EMF
75kHz dev, L+R=90%
Pilot=10%
60
50
40
30
20
5
V
CC
=4.5V
V
CC
fc=98MHz, Vin=60dBµV EMF
75kHz dev, L+R=90%
Pilot=10%
4
3
2
Sep R
Sep L
Sub
1
0
10
0
ST
Mono
0.01
0.1
1.0
10
100
0.01
0.1
1.0
10
100
Modulation frequency, fm – kHz
Modulation frequency, fm – kHz
Specifications of any and all SANYO Semiconductor 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 Semiconductor 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 Semiconductor 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 Semiconductor 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 Semiconductor 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 Semiconductor 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 November, 2006. Specifications and information herein are subject
to change without notice.
PS No.6854-12/12
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