PD17012GF-058_15 Datasheet, PDF (10/94 Pages) Renesas Technology Corp – PLL FREQUENCY SYNTHESIZER AND CONTROLLER FOR FM/MW/LW TUNER (AUTOMOBILE APPLICATION)

µPD17012GF-058
Pin
Symbol
No.
Pin name
Description
I/O type
12
FMIFC FM intermediate Input pin of the intermediate frequency (IF) in the FM band
Input
frequency input To protect the built-in AC amplifier, block the flow of direct current
with a capacitor, then input the frequency.
When the ENFMIF switch (initial setting diode) is set to 1, this pin is
used to detect a station during auto-tuning.
If the input frequency range and conditions listed below are
satisfied, it is judged that a station has been found.
Item
Band
FM
Input frequency
range <1>
10.7 MHz
±50 kHz
Input frequency
range <2>
10.7 MHz
±12.5 kHz
A frequency within input frequency range <1> must be input within
20 ms of the PLL being locked. If a frequency is included in both
input frequency ranges <1> and <2>, it is judged that a station has
been found. Auto-tuning is stopped.
13
AMIFC AM intermediate Input pin for the intermediate frequency (IF) in the AM (MW, LW)
frequency input band. To protect the built-in AC amplifier, block the flow of direct
current with a capacitor, then input the frequency.
If the initial setting diode ENAMIF is set to 1, this pin is used to
detect whether a station is found in auto-tuning.
If the input frequency range and conditions listed below are
satisfied, it is judged that a station has been found.
Input
Item
Band
MW
LW
Input frequency
range <1> [kHz]
450 ± 5
450 ± 5
Input frequency
range <2> [kHz]
450 ± 2
450 ± 0.5
14
KY-IN
Key input
A frequency within input frequency range <1> must be input within
20 ms of the PLL being locked. If a frequency is included in both
input frequency ranges <1> and <2>, it is judged that a station has
been found. Auto-tuning is stopped.
Input pin for the key return signal of the momentary key matrix
Input
8