LA1833N [SANYO]
System-on-Chip Tuner IC for Home Stereo Systems; 系统单芯片调谐器IC，适用于家用音响系统
| 型号： | LA1833N |
| 厂家： | 
SANYO SEMICON DEVICE |
| 描述： | System-on-Chip Tuner IC for Home Stereo Systems |
| 文件： | 总10页 (文件大小：103K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Ordering number : ENN6568
Monolithic Linear IC
LA1833N, 1833NM
System-on-Chip Tuner IC for Home Stereo Systems
— FM total harmonic distortion detuning
characteristics and signal-to-noise ratio improved
Overview
The LA1833N/NM is an AM/FM IF and MPX system-on-
chip 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.
over those of the LA1833
Package Dimensions
unit: mm
Functions
3112A-MFP24S
• AM: RF amplifier, mixer, oscillator, IF amplifier,
detector, AGC, SD, oscillator buffer, IF buffer, and
stereo IF output
[LA1833N]
24
13
• 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
1
12
0.15
12.5
Features
• Improvements over the LA1832
1.0
(0.75)
0.35
SANYO: MFP24S (300 mil)
— 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)
unit: mm
3067A-DIP24S
[LA1833NM]
— Built-in pilot canceler function (19 kHz)
— AM and FM output levels can be set independently
— Improved FM reception characteristics (IF beating
improved)
21.0
24
13
• Other features
— Pin arrangement nearly identical to that of the
1
12
0.9
LA1832
— AM coil specifications can be the same as those used
for the LA1832.
— ST operating dynamic range improved over that of
the LA1833
(0.71)
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
LA1833N, 1833NM
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
V
Maximum supply voltage
VCC max
9
(LA1833N)
400
400
mW
mW
mW
°C
Allowable power dissipation
Pd max
(LA1833NM) (Ta ≤ 45°C)
(LA1833NM) (Ta = 70°C)
270
Operating temperature
Storage temperature
Topr
Tstg
–20 to +70
–40 to +125
°C
Operating Conditions at Ta = 25°C
Parameter
Recommended supply voltage
Operating supply voltage range
Symbol
VCC
Conditions
Ratings
5
Unit
V
VCC op
4 to 8
V
Electrical Characteristics at V = 5 V, in the specified test circuit
CC
Ratings
typ
Parameter
Symbol
Conditions
Unit
min
max
[FM Mono Characteristics: fc = 10.7 MHz, fm = 1 kHz]
Current drain
ICCO-FM No input
18
28
38
mA
Demodulator output
VO-FM
100 dBµ, 100% mod. The pin 13 output
210
330
420
1.5
1.5
mVrms
100 dBµ, 100% mod.
The ratio (pin 13 output)/(pin 14 output)
Channel balance
C.B-mono
–1.5
0
dB
Total harmonic distortion (mono)
Signal-to-noise ratio
THD-FM 100 dBµ, 100% mod. The pin 13 output
S/N-FM 100 dBµ, 100% mod. The pin 13 output
0.5
78
63
%
70
45
dB
dB
AM rejection ratio
AMR
100 dBµ, AM = 30% mod. fm = 1 kHz
100 dBµ, 100% mod. The pin 13 output
Referenced to the output, when the input is down by –3 dB
Input limiting voltage
–3dBL. S
SD-On-FM
34
42
dBµ
SD LED on sensitivity
IF counter buffer output
Muting attenuation
32
42
275
76
52
dBµ
mVrms
dB
VIFBuff-FM 100 dBµ, the pin 10 output
200
400
Mute Att 100 dBµ, 100% mod. fm = 1 kHz
[Stereo Characteristics: fc = 10.7 MHz, 100 dBµ, fm = 1 kHz, L + R = 90%, pilot = 10%]
Left channel modulated,
Separation
Sep
28
42
dB
the ratio (pin 13 output)/(pin 14 output)
The pilot modulation level such that V7 becomes
less than 0.7 V
Stereo on level
ST-on
1.5
3.5
0.7
36
5.5
1.5
%
%
Total harmonic distortion (main)
THD-main L + R modulation, the pin 13 output
Adjacent channel interference
rejection ratio
fs = 113 kHz, Vs = 90%, Pilot = 10%; the pin 13 output
with respect to an L – R modulated 1 kHz demodulator output
Brej-3rd
dB
Adjacent channel interference
rejection ratio
fs = 189 kHz, Vs = 90%, Pilot = 10%; the pin 13 output
with respect to an L – R modulated 1 kHz demodulator output
Brej-5th
CL
41
44
dB
dB
Carrier leakage
L + R = 90%, De-emph asis 50 µs, Pilot = 10%
38
[AM Characteristics: fc = 1000 kHz, fm = 1 kHz]
Current drain
ICCO-AM No input
11
40
90
16
48
22
80
33
160
230
mA
mVrms
mVrms
dB
Detector output
Detector output
VO-AM (1) 23 dBµ, 30% modulation. The pin 13 output
VO-AM (2) 80 dBµ, 30% modulation. The pin 13 output
S/N-AM (1) 23 dBµ, 30% modulation. The pin 13 output
S/N-AM (2) 80 dBµ, 30% modulation. The pin 13 output
THD-AM (1) 80 dBµ, 30% modulation. The pin 13 output
THD-AM (2) 100 dBµ, 30% modulation. The pin 13 output
SD-On-AM
160
21
Signal-to-noise ratio
54
dB
0.4
0.5
24
1.1
1.3
34
%
Total harmonic distortion
%
SD LED on sensitivity
14
140
140
dBµ
Local oscillator buffer output
IF counter buffer output
VOSC-AM No input, the pin 24 output
200
285
mVrms
mVrms
V -AM 80 dBµ, no modulation, the pin 10 output
IFBuff
400
No. 6568-2/10
LA1833N, 1833NM
Pin Descriptions
Pin No.
Pin
Voltage (V)
Vreg
Functional description
Equivalent circuit
1
3
1
The input impedance, ri, is 330 Ω
FM IF input
ILA00220
2
The mixer coil is connected between pins
2 and 9
VCC
2
AM MIX output
ILA00221
3
2.1
3
REG
Vreg = 2.1 V
ILA00222
4
4
5
AM IF input
Vreg
The input impedance, ri, is 2 kΩ
ILA00223
GND
0
6
7
Tu-LED
ST-LED
These are active-low open-collector
outputs.
6
7
VCC
Set up the current flowing in to these pins
to exceed 100 µA.
Also functions as the
AM stereo IF output
ILA00224
Recommended ceramic discriminators
FCD1070MA11UK2L (TDK)
VCC – 2.1
8
FM-DET
CDA10.7MG86N (Murata Mfg. Co., Ltd.)
8
ILA00225
VCC
9
5.0
AM/FM IF counter
output
V10 ≤ 0.5 V: Reception state (normal)
1.4 V ≤ V10 ≤ 2.2 V: Muting on state.
10
Also functions as a
control switch
10
0
V10 ≥ 3.5 V: Muting on and IF counter on
Also functions as the
muting switch
(seek state).
ILA00226
Continued on next page.
No. 6568-3/10
LA1833N, 1833NM
Continued from preceding page.
Pin No.
Pin
Voltage (V)
VCC – 1.0
Functional description
Equivalent circuit
11
Phase comparator
filter connection
The IC switches to AM mode if a current in
excess of 200 µA flows from this pin
11
Also functions as the
FM/AM switching
input
ILA00227
12
Pilot detector filter
connection
The IC switches to forced mono mode if a
current in excess of 50 µA flows from this
pin.
Also functions as the
forced mono setting
V
CC – 1.0
12
The VCO circuit is stopped if a current in
excess of 200 µA flows from this pin.
Also functions as the
VCO stop control
ILA00228
13
13
14
Left output
The output impedance, ro, is 3.3 kΩ
1.8
Right output
14
(
)
ILA00229
15
15
Pilot canceller output
Vreg
3
ILA00230
RNF
Inverting input
16
Decoder input
Vreg
16
RNF = 20 kΩ
ILA00231
17
The input impedance, ri, is 20 kΩ
17
PLL input
Vreg
ILA00232
18
The output impedance, ro, is 2.3 kΩ.
The separation can be adjusted by
changing the value of the capacitor
connected between this pin and ground.
18
FM demodulator output
Vreg
ILA00233
100V
0 (FM)
19
AM detector output
The output impedance, ro, is 10 kΩ
1.5 (AM)
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
Internal load resistor R = 13.9 kΩ.
S meter
0.2 (FM)
0.9 (AM)
20
The SD response speed during seek
operations is set by the value of the
external capacitor connected to pin 20.
20
Also functions as the
AM AGC
R
ILA00235
21
Pin 21 and pin 22 (the AFC voltage) are
used at the same potential
21
AM RF-IN
Vreg
ILA00236
The FM SD bandwidth can be adjusted by
an external resistor connected between
pin 22 and pin 3 (the regulator voltage).
22
22
AFC
Vreg
Note: A bandwidth of 180 kHz or higher is
appropriate for the FM SD bandwidth.
ILA00237
23
The oscillator coil is connected between
pin 23 and pin 9 (the VCC voltage).
VCC
23
OSC
Note: The oscillator coil impedance
(secondary side) must be at least
5 kΩ.
ILA00238
The FM SD sensitivity can be adjusted
with an external resistor on pin 24.
R = 200 Ω
Oscillator buffer
R
24
Also functions as the
FM SD adjustment
VCC – 1.4
24
Note: The resistance of the pin 24 external
resistor must be at least 3.3 kΩ.
ILA00239
No. 6568-5/10
LA1833N, 1833NM
Block Diagram
ILA00240
No. 6568-6/10
LA1833N, 1833NM
Test Circuit
F µ
F µ
0 . 0 1 5
0 . 0 1 5
F µ
0 . 0 0 4 7
2 0 p F
1 0 0 0 p F
Ω
1 0 0
Ω
5 0 k
1 0 0 0 p F
5 0 k
F µ
0 . 0 4 7
Ω
F µ 2 2
F µ 3 . 3
Ω 5 0
F µ
0 . 0 4 7
Ω
5 . 6 k
F µ 3 3
Ω 7 5
ILA00241
No. 6568-7/10
LA1833N, 1833NM
FM IF I/O Characteristics
FM IF THD Detuning Characteristics
0
--10
--20
--30
--40
--50
--60
--70
3.0
2.5
2.0
1.5
1.0
S
AM
N
0.5
0
--80
--90
0
2
0
2
50
100
150
ILA00242
10.55
10.6
10.65
10.7
10.75
10.8
10.85
Frequency — MHz
Input — dBµ
ILA00243
FM IF VCC Characteristics
FM IF VCC Characteristics
12
20
0
60
55
50
45
40
35
30
10
8
S
SD on range
--20
--40
--60
Qs
6
4
N
2
0
--80
25
20
--100
4Supply volta6ge, V — V8
2
10
ILA00245
4
6
8
10
Supply voltage, V — V
CC
CC
ILA00244
AM VCC Characteristics
AM Characteristics
10
8
1.6
0
--10
--20
--30
--40
--50
--60
20
0
1.4
1.2
Vout
1.0
0.8
0.6
0.4
--20
--40
6
4
2
0
--60
--80
Noise
--70
--80
0.2
0
SD - OUT
20
40
60
80
100
120
140
2
4
6
8
10
Supply voltage, V — V
Input — dBµ
AM VCC Characteristics
ILA00247
ILA00246
CC
FM IF Temperature Characteristics
80
70
60
50
40
30
20
100
80
60
SD -- ON
40
Useable sensitivity
20
0
10
0
--40
--20
0
20
40
60
80
100
4
6
8
10
ILA00248
Supply voltage, V — V
Ambient temperature, Ta — °C
CC
ILA00249
No. 6568-8/10
LA1833N, 1833NM
FM ST VCC Characteristics
FM IF Temperature Characteristics
3.0
2.5
2.0
1.5
1.0
3.5
3.0
70
60
50
40
30
20
2.5
2.0
1.5
1.0
Sep
0.5
0
10
0
0.5
0
THD
--40
--20
0
20
40
60
80
100
--40
--20
0
20
40
60
80
100
Ambient temperature, Ta — °C
Ambient temperature, Ta — °C
ILA00250
ILA00251
AM Temperature Characteristics
AM Temperature Characteristics
60
50
40
30
20
3.0
2.5
2.0
1.5
1.0
20dB
µ
10
0
0.5
0
--40
--20
0
20
40
60
80
100
--40
--20
0
20
40
60
80
100
Ambient temperature, Ta — °C
Ambient temperature, Ta — °C
ILA00252
ILA00253
THD — fm
Sep — fm
10
50
40
30
20
1.0
10
0
0.1
10
100
1000
10000
100000
ILA00254
10
100
1000
10000
100000
ILA00255
Modulation frequency, fm — kHz
Modulation frequency, fm — kHz
THD — VCC
Sep, S / N — VCC
10
100
80
7
5
Sep L
3
2
S / N
60
1.0
7
5
40
3
2
20
0
THD mono
0.1
0
1
2
3
4
5
6
7
8
9
2
4
6
8
10
ILA00257
Supply voltage, V — V
Supply voltage, V — V
ILA00256
CC
CC
No. 6568-9/10
LA1833N, 1833NM
VL on, off — VCC
Capture Range Characteristics
8
6
3.0
2.5
2.0
1.5
1.0
4
VL on
2
0
--2
--4
VL off
0.5
0
--6
--8
2
4
6
8
10
ILA00258
10
15
20
25
30
35
ILA00259
Supply voltage, V — V
Pilot input voltage — mV
CC
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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