LV25450PNW Datasheet, PDF (11/40 Pages) Sanyo Semicon Device – For Automotive Applications DSP Tuner Front End

Functions
AM/FM front-end AGC block
FM Image rejection Mixer (IQ-MIX)
FM IQ-MIX phase adjust (For the Japanese FM band)
Injection switching
AM Double balance Mixer
Pin diode drive AGC output (AM/FM)
Wide AGC sensitivity setting (AM/FM)
Narrow AGC sensitivity setting (AM/FM)
Keyed AGC adjust (FM)
AM RF AGC
Local oscillator
Local osc divider (FM/AM)
Local osc divider (AM)
ANT/RF DAC (FM)
AM 1st IF AMP block
1st-IF amplifier 10.7M
IF-Lim-Amp/S-meter block
S-meter shifter
IF Limiter Amplifier 6 stage
S-meter (DC for keyed AGC) (FM)
IF-AGC-Amp/IF-Amp for Diversity block
IF AGC Amplifier (control Voltage from DSP)
IF output Driver for DSP
IFAGC-Amp Gain Adjust.
IF-Amplifier for Diversity (Fixed Gain)
IF-Output Driver for DIV-IF
PLL
Fast lock PLL
Filter SW
Charge-Pomp switching
other
Tuner off
2.7V Regurator adjust
LV25450PNW
Gain switching : 1 bit
1 bit
4 bit DAC
4 bit DAC
4 bit DAC
4 bit DAC
133MHz to 262MHz
Division by 1, 2, or 3
Division by 20, 16, 12, or 8
9 bit DAC × 2
5 bit DAC
10.7MHz IF
10.7MHz IF
10.7MHz IF
1 bit SW
2 bit DAC
for East Band Receive
for FM-S-meter
No.A1668-11/40