LA1193M Datasheet, PDF (1/21 Pages) Sanyo Semicon Device – High-Performance FM Front End for Car Radios

Ordering number : EN4715A
Monolithic Linear IC
LA1193M, 1193V
High-Performance FM Front End for Car Radios
Overview
The LA1193M and LA1193V are front-end ICs developed
for use in car radios. It incorporates an extremely wide
dynamic range mixer and a new AGC system consisting
of a dual-system wide-band AGC and a new keyed AGC
to provide excellent interference suppression
characteristics.
Functions
• Double-balance mixer
• Pin diode drive output
• Differential IF amplifier
• Dual-system wide-band AGC circuit
• Local buffer output
• 3D-AGC system
• FET gate drive AGC output
• IF amplifier gain control pin
Features
• Improved interference characteristics
— Expanded mixer input dynamic range
Mixer input usable sensitivity: 15 dBµ
Mixer input I.M. QS:
90 dBµ
(The dynamic range has been increased by 6 dB
over the earlier LA1175M.)
— Development of a new wide-band AGC circuit
Improved interference characteristics for both near-
channel interference and far-channel interference
Improved interference characteristics for the TV band
— Development of a 3D-AGC system
The adjacent channel two-signal interference
characteristics can be effectively improved without
degrading the strong-field three-signal interference
characteristics during keyed AGC operation.
• Improved temperature characteristics
— Conversion gain
— AGC sensitivity
— Antenna damping drive output current
Package Dimensions
unit: mm
3036B-MFP20
[LA1193M]
unit: mm
3179A-SSOP20
[LA1193V]
• Improved stability design
— AGC circuit local oscillator isolation
Measures were taken to prevent the deterioration of
AMR, noise level, THD and other characteristics
during AGC operation.
— AGC circuit incorrect operation measures
The LA1193M provides methods to prevent
incorrect operation due to local oscillator injection
and loss of DC balance.
SANYO: SSOP20
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
31097HA (OT)/61094TH(OT) A8-9997 No. 4715-1/21