SANYO LA1175M, LA1175 Datasheet
LA1175, 1175M
Ordering number : EN2276B
FM Front End For Car Radio,
Home Stereo Applications
Monolithic Linear IC
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
93097HA (KT)/D0994JN/3237TA/8226KI, TS No.2276-1/14
Functions
• Double-balanced type MIX, PIN diode drive AGC output,
MOS FET gate drive AGC output, keyed AGC,
differential IF amplifier, buffer amplifier for oscillation,
local oscillation.
Features
• By using the keyed AGC system, which is effective in
improving the sensitivity suppression characteristic, in
combination with the antenna damping AGC (PIN diode
driver on chip) and MOS FET 2nd gate drive AGC, the
intermodulation characteristic for a large undesired signal
is greatly improved. It is also possible to use the keyed
AGC system in combination with the antenna damping
AGC or MOS FET 2nd gate drive AGC.
• The temperature characteristic and noise figure are
improved. The same supply voltage makes it easy to use
the LA1175, 1175M.
Package Dimensions
unit: mm
3020A-SIP16
[LA1175]
SANYO: SIP16
Specifications
Maximum Ratings
at Ta=25°C
Parameter Symbol Conditions Ratings Unit
Maximum supply voltage V
CC
max Pins 4, 14 9.5 V
Pins 8, 9 15 V
Allowable power dissipation Pd max LA1175 : Ta≤70°C 460 mW
LA1175M : Ta≤70°C 435 mW
Mounted on PCB (bakelite)
of 40mm
×48mm×1.8mm
2
Operating temperature Topr –20 to +70 °C
Storage temperature Tstg –40 to +125 °C
unit: mm
3035A-MFP16
[LA1175M]
SANYO: MFP16
LA1175, 1175M
Operating Conditions at Ta=25°C
Parameter Symbol Conditions Ratings Unit
Recommended supply voltage V
CC
Pin 4, 8, 9, 14 8 V
Operating voltagerange V
CC
op 8 to 9 V
Electrical Characteristics at Ta=25°C, V
CC
=8V, See specified Test Circuit.
Parameter Symbol Conditions
Ratings
min typ max
Unit
Current drain I
CC
Pins 4, 8, 9, 14 : no input 23.0 28.0 33.0 mA
AGC high-level voltage V
AGCH
VIN=0dBµ, VCL=4V 7.6 7.9 V
AGC low-level voltage V
AGCL
VIN=100dBµ, VCL=4V 0.2 0.7 V
IF input resistance R
IN
260 330 400 Ω
AGC control input V
CL
7 VIN=100dBµ, V
AGC
=7V 0.25 0.5 V
V
CL
2 VIN=100dBµ, V
AGC
=2V 1.1 1.6 2.1 V
Voltage gain A
V
LA1175 : VIN=75dBµ 99 102 105 dBµ
LA1175M : V
IN
=75dBµ 97 100 103 dBµ
Input limiting voltage V
INlim
LA1175 : Referenced to VIN=110dBµ 81 88 95 dBµ
LA1175M : Referenced to V
IN
=110dBµ 80 87 94 dBµ
AGC input voltage V
iAGC
V
AGC
=2V 67 74 81 dBµ
Saturation output voltage V
OUT
LA1175 : VIN=110dBµ 110 114 dBµ
LA1175M : V
IN
=110dBµ 100 113 dBµ
OSC BUFF output V
OSC
BUFF 1kΩ load 105 109 dBµ
ANT damping drive I
ANT-D
VIN=100dBµ 4.5 6.0 8.0 mA
current
No.2276-2/14
Ambient temperature, Ta – °C
Allowable power dissipation, Pd max – mW
Ambient temperature, Ta – °C
Allowable power dissipation, Pd max – mW
LA1175, 1175M
No.2276-3/14
Equivalent Circuit Block Diagram and Peripheral Circuit : LA1175M
MIX output IFT 10mm
YT-20577 (Mitsumi)
014-022 (Sumida)
EKSC-30174FCU (Toko)
OSC coil YT-30013 (Mitsumi)
WIRE 0.8φ inside dia. 6mmφ 4T air core
MIX output (small-sized)
47K-074-124 (Sumida)
MIX output IFT 10mm
YT-20577 (Mitsumi)
014-022 (Sumida)
EKSC-30174FCU (Toko)
OSC coil YT-30013 (Mitsumi)
WIRE 0.8φ inside dia. 6mmφ 4T air core
MIX output (small-sized)
47K-074-124 (Sumida)
Equivalent Circuit Block Diagram and Peripheral Circuit : LA1175
Unit (resistance : Ω, capacitance : F)
Unit (resistance : Ω, capacitance : F)
LA1175, 1175M
No.2276-4/14
Internal Connection Diagram : LA1175
Unit (resistance : Ω, capacitance : F)
MIX input – dBµ
V
AGC
– V
IF output – dBµ
Supply voltage, VCC– V
Current drain, I
CC
– mA
Input/Output Characteristic
LA1175, 1175M
No.2276-5/14
MIX input – dBµ
MIX output – dBµ
MIX BLOCK Input/Output Characteristic
IF input – dBµ
IF output – dBµ
IF BLOCK Input/Output Characteristic
Pin 10 input – dBµ
I
ANTD
– mA
V
AGC
– V
C 10 – pF
V
AGC
– dBµ
∆f – MHz
V
iANTD
– dBµ
V
AGC
Input/Output Characteristic (AGC BLOCK)
Unit (resistance : Ω, capacitance : F)
Unit (resistance : Ω, capacitance : F)
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