TA1322FN Datasheet, PDF (13/21 Pages) Toshiba Semiconductor – DOWB-CONVERTER IC WITH PLL FOR SATELLITE TUNER

TA1322FN
Data Specifications
· MA1 and MA0: programmable hardware address bits
MA1
MA0
Voltage Applied to Address Pin
0
0
0
1
1
0
1
1
0 to 0.1V_CC2
OPEN or 0 to V_CC2
0.4V_CC2 to 0.6V_CC2
0.9V_CC2 to V_CC2
· N14-N0: programmable counter data
· CP: charge pump output current setting
[0]: ±50 mA (typ.)
[1]: ±240 mA (typ.)
· T1: test mode setting
[0]: normal mode
[1]: test mode
· T0: charge pump setting
[0]: charge pump is ON (normal mode)
[1]: charge pump is OFF
· TS0: X’tal reference frequency divider ratio select bits.
TS0
Divider ratio
Step frequency
0
1/128
1
1/64
62.5 kHz
125 kHz
fr
31.25 kHz
62.5 kHz
· T1, TS2, TS1, TS0: test mode
Characteristics
T1 TS2 TS1 TS0 Divider ratio
Notes
Normal operation
Normal operation
Sink
Charge pump
Source
Output port OFF
Phase comparator test
0´´0
0´´1
1100
1101
1110
1
1
11
1000
X’tal divider counter output
1001
1010
1/2 counter divider output
1011
1/128
1/64
1/128
1/64
1/128
1/64
1/128
1/64
1/128
1/64
¾
¾
¾
¾
P7, P5, P4 OFF
SDA: Comparative signal input
SCL: Reference signal input
Output to pin 25 (TEST)
Output to pin 25 (TEST)
´: DON’T CARE
Note 5: When test mode, OS = 0 (tuning ON) is necessary.
When testing the counter divider output, programmable counter data input is necessary.
13
2002-02-12