PD17012GF-058_15 Datasheet, PDF (9/94 Pages) Renesas Technology Corp – PLL FREQUENCY SYNTHESIZER AND CONTROLLER FOR FM/MW/LW TUNER (AUTOMOBILE APPLICATION)

µPD17012GF-058
1. PIN FUNCTIONS
Pin
Symbol
No.
Pin name
1 EVOL_SCK Clock output of
electronic
volume control
2 EVOL_DA Data input/
output of
electronic
volume control
3
EO
Error out
4
VDD1
Power supply
8
VDD2
5
VCOL
AM local
oscillator input
6
VCOH FM local
oscillator input
7
CE
Chip enable
9
SCK
Serial clock
output
10
SO
Serial data
output
11 ALARMIN Door switch
input
Description
I/O type
Clock output pin of electronic volume control
For details of data output, see Appendix.
CMOS
push-pull
output
Data input/output pin of electronic volume control
For details of data output, see Appendix.
Input/output
CMOS
push-pull
output
Charge pump output pin of phase detector built into a PLL. If a
divided oscillator frequency is higher than the reference frequency,
the output of this pin goes high. If the divided oscillator frequency
is lower, the output goes low. If the divided oscillator frequency
agrees with the reference frequency, the output enters the floating
state.
CMOS
tristate
output
Power-supply pin of the device
-
This pin supplies a voltage of 5 V ±10 % while the device is
operating. The rise time (0 to 4.5 V) of VDD must not exceed 500
ms. If the rise time is significantly long or if the voltage falls below
the operating voltage but is between 0 V and 3.5 V, the state of an
initial setting diode switch may be read incorrectly.
Input pin of the local oscillator output (VCO) in the AM (MW, LW)
band
When tuned to broadcasts in the MW or LW band, this pin becomes
active. Otherwise, the pin is internally pulled down.
To protect the built-in AC amplifier, block the flow of direct current
with a capacitor, then input the frequency.
Input
Input pin of the local oscillator output (VCO) in the FM band
When tuned to broadcasts in the FM band, this pin becomes active.
Otherwise, the pin is internally pulled down.
Because an AC amplifier is incorporated, block the flow of direct
current with a capacitor, then input the frequency.
Input
Input pin of the device selection signal
Always pull up the pin.
Input
Serial clock output pin for controlling the LCD controller/driver
(µPD7225)
CMOS
push-pull
output
Serial data output pin for controlling the LCD controller/driver
(µPD7225)
CMOS
push-pull
output
Input pin of the door switch
See Chapter 3 for details.
Input
7