SANYO LA1185

Ordering number: EN1521D
Monolithic Linear IC
LA1185
FM Front-end for Radio-cassette Recorder, Home
Stereo Applications
Overview
Package Dimensions
The LA1185 is an FM receiver front-end IC for radio-cassette
recorder, music center applications. Its mixer is of
double-balanced type. The built-in oscillator and buffer
amplifier improves the strong input characteristic.
unit : mm
3017C-SIP9
[LA1185]
Use
. FM front-end IC for radio-cassette recorders and music
centers
Functions and Features
SANYO : SIP9
. RF amplifier, mixer, local oscillator
. Improvement in cross modulation characteristics due to the
of double-balanced mixer.
. use
Improvement in strong input characteristic.
. Minimum number of external parts required.
. Less spurious radiation from local oscillator.
. Operating voltage range : 1.5 to 8.0 V
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Maximum supply voltage
Maximum pin voltage
Allowable power dissipation
Symbol
Conditions
Ratings
VCC max
Unit
8
V
V3-5
12
V
V6-5
VCC + 0.8
V
Pd max
Ta % 80°C
150
mW
Operating temperature
Topr
–20 to +80
°C
Storage temperature
Tstg
–40 to +125
°C
Ratings
Unit
Operating Conditions at Ta = 25°C
Parameter
Recommended supply voltage
Operating voltage range
Symbol
VCC
VCCop
Conditions
4.5
V
1.5 to 8.0
V
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
81096HA(II)/0067KI/N214MW/4124KI/9283KI,TS No.1521-1/5
LA1185
Operating Characteristics at Ta = 25°C, VCC = 4.5 V, fr = 108 MHz, fOSC = 118.7 MHz,
See specified Test Circuit
Symbol
ICC
Vo
VOSC
Vstop
Conditions
Quiescent
100 dBµ
VCC = 2 V
Allowable power dissipation, Pd max − mW
Parameter
Current dissipation
Output saturation voltage
Local oscillation voltage
Oscillation stop voltage
min
95
190
typ
5.5
115
235
1.4
max
8.0
135
1.6
Unit
mA
mVrms
mVrms
V
Ambient temperature, Ta − °C
(Mitsumi)
Test Circuit and Equivalent Circuit Block Diagram
(Sumida)
(Sumida)
(Mitsumi)
Unit (resistance: Ω, capacitance: F)
No.1521-2/5
Supply voltage, VCC – V
Band Characteristic
Local oscillation voltage
Conversion gain
Saturation output
Specified test circuit
with ANT B.P.F. removed
MIX gain – dB
Specified test circuit
Saturation output – dBµ
Local oscillation voltage – dBµ
MIX gain – dB
∆fOSC – kHz
Total gain – dB
VCC Characteristic
Oscillation output, VOSC – mVrms, ICC– 0 – mA
Conversion gain – dB
LA1185
Receiving frequency, fr − MHz
Oscillation frequency, fOSC – MHz
Temperature Characteristic Test Circuit
Oscillation frequency, fOSC– MHz
65 dBµ sensitivity
VO-100– dBµ
Current dissipation, ICC-O – mA
65 dBµ sensitivity – dBµ
Temperature Characteristic
Unit (resistance: Ω, capacitance: F)
Ambient temperature, Ta − °C
No.1521-3/5
LA1185
Sample Application Circuit: LA1185 + LA1260 US band
AM section
Unit (resistance: Ω, capacitance: F)
LA185+LA1260 Overall Characteristic
0 dB
= 100%
Mitsumi
Sumida
T1
YT-30224
2153-4016-006
T2
YT-30194
2153-4095-339
L1
YT-30196
0708-700
L2
YT-40001
0708-701
B.P.F.
YT-30025
SNY-074-2001
THD – %
AM output fm = 1 kHz
LED lightning sensitivity 11.5dB
ANT input – dBµ
LA1185+LA1260 Band Characteristic
LED lightning sensitivity
Usable sensitivity
Saturation output
Remove 1st stage B.P.F. when testing
Saturation output – mVrms
Usable sensitivity S/N –30 dB input, – dBµ
LED lightning sensitivity, 3 dB L.S.
Output – dBm
Output fm = 400 Hz 30% mod
Receiving frequency, fr – MHz
No.1521-4/5
LA1185
No products described or contained herein are intended for use in surgical implants, life-support systems, aerospace equipment,
nuclear power control systems, vehicles, disaster/crime-prevention equipment and the like, the failure of which may directly or
indirectly cause injury, death or property loss.
Anyone purchasing any products described or contained herein for an above-mentioned use shall:
1 Accept full responsibility and indemnify and defend SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors
and all their officers and employees, jointly and severally, against any and all claims and litigation and all damages, cost and
expenses associated with such use:
2 Not impose any responsibility for any fault or negligence which may be cited in any such claim or litigation on SANYO
ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors or any of their officers and employees jointly or severally.
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 August, 1996. Specifications and information herein are subject to change without notice.
No.1521-5/5