LA1245 Datasheet, PDF (1/11 Pages) Sanyo Semicon Device – AM Electronic Tuner

Ordering number : EN737F
Monolithic Linear IC
LA1245
AM Electronic Tuner
Overview
LA1245 is a high performance IC to be used as an AM
electronic tuner. It provides an automatic search-stop
signal, local oscillator buffer-output, and the low level
local oscillation, as well as providing all other functions
required of an AM tuner. Moreover, the stable local
oscillation from LW to SW facilitates the use of many
band.
Functions
Package Dimensions
unit : mm
3021B-DIP20S
[LA1245]
• RF amplifier • MIX • OSC (with ALC) • Detection
• IF amplifier • AGC • Local oscillation buffer-output
• Signal meter driving output (also used as an automatic
search stop-signal)
• etc.
SANYO: DIP20S
Features
• Narrow-band signal meter
• Local oscillation buffer-output
• OSC (with ALC)
• RF amplifier
• MIX
• Low noise
• Compensation for V_CC fluctuation
• Low shock noise
: Available as an automatic search-stop signal (also available as a wide-band signal
meter). Signal meter output=1/2 frequency ±1.5kHz typ.
: Facilitates the design of electronic tuning systems and frequency representation.
: The oscillation output is stabilized at a low level (350 mVrms) for a varactor
diode, and tracking error is minimized.
: Excellent in usable sensitivity by incorporating low-noise transistors in cascode
circuit (45dB/m typ).
: Double balanced differential MIX prevents the influence of spurious radiation and
IF interferences (IF interference = 85dB typ).
: Excellent in S/N for intermediate input (57dB typ).
: Allows little gain fluctuation and little distoriton fluctuation (8 to 16 V).
: Able to decrease the shock noise by selecting AGC time constant when changing
V_CC-on and/or switching the mode.
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
63097HA (KOTO)/33194HO/N050JK/8044KI,TS3173KI/O020KI No.737-1/11