LV25700PM Datasheet, PDF (14/68 Pages) Sanyo Semicon Device – For Car Radio Single chip Tuner IC

LV25700PM
Continued from preceding page.
Pin name
Function
19 VT
20 LPFD
21 CPAM
22 CPFM
23 FET_GND
Discription
LPFD:
Internal FET drain output pin for PLL
This pin is combined with CPFM/CPAM pins
to form a low pass filter for PLL.
CPFM, CPAM:
Charge pump output pins
These pins are placed in high-impedance
state in BACKUP mode, at power-on-reset
time, and in PLL stop state.
Internal Equivalent Circuit
RF_VCC(PIN2)
3kΩ
D_VCC(PIN35)
FM_ON
10kΩ
AM_OFF
FM_OFF
1kΩ
FM_ON
100Ω 100Ω
100Ω 100Ω
19 20 23 21 22
D_GND(PIN37)
24 DC MONITOR
Adjustment mode
Internal signal output monitor pin
See BIT specifications.
Normal mode:
This pin outputs the SD signal.
25 F3
26 UL/IFEND/BUSY
42 F2
43 F1
F3
This pin must be left open.
Output port
UL/IFEND/BUSY:
These pin generates the signal that
identifies the Radio PLL-Unlock, IF count
end, or I²C BUS Busy state.
F1, F2
These pins must be left open.
Default pull-down ON.
27 SD_OUT/ST_IND
28 Q_OUT
31 S_DA
32 S_CK
SD_OUT/ST_IND
SD, ST_IND signal output pin
QOUT
Quality-out signal output pin
SDA, SCK
I²C interface pins.
Both are of open drain type.
External pull-up resistors are needed.
Use the same power supply for the pull-up
resistors and Pin 34 BUS.
These pins are set to an input port at
RESET time.
24
12
26
32
1
UL/IFEND/BUSY, F3 pin
25
32
32
1
D_GND (PIN37)
F1, F2 pin
27
32
1
SD_OUT/ST_IND,Q_OUT pin
31
1 21 2
D_GND (PIN37)
S_DA,S_CK pin
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No.A1709-14/68