参数资料
型号: TB1308FG
元件分类: 信号分离
英文描述: SYNC SEPARATOR IC, PQFP48
封装: 10 X 14 MM, 0.80 MM PITCH, PLASTIC, QFP-48
文件页数: 29/33页
文件大小: 659K
代理商: TB1308FG
TB1305FG, TB1308FG
2006-07-03
5
Pin
No.
Pin Name
Function
Interface Circuit
Input Signal/Output Signal
21
XTAL
Crystal connection pin.
Connect a 3.579545 MHz crystal for NTSC
demodulation to generate internal clocks.
21
31
33
500Ω
2.5kΩ
35
Vf0ADJ
A filter pin to adjust bandwidth filter
characteristics.
35
46
44
200Ω
40
BIAS FIL
A filter pin for internal bias circuits.
40
46
44
800Ω
1kΩ
1k
Ω
18
SDA
SDA pin for I
2CBUS.
18
20
31
50Ω
5kΩ
ACK
SDA
22
Th: 2.25V(typ.)
Th: 1.50V(typ.)
H to L: 1.50 V (typ.)
L to H: 2.25 V (typ.)
19
SCL
SCL pin for I
2CBUS.
19
20
31
5kΩ
22
Th: 2.25V(typ.)
Th: 1.50V(typ.)
H to L: 1.50 V (typ.)
L to H: 2.25 V (typ.)
27
ADDRESS
Slave address switching pin.
Connect to 5 V Vcc or GND. Or leave this
pin open.
27
46
44
Th1
Th2
10k
Ω
20k
Ω
20k
Ω
40
Ω
60k
Ω
1kΩ
5 V Vcc:
DCH/DDH
Open:
DAH/DBH
GND:
D8H/D9H
7
37
NC
These pins are not used.
Connect to GND.
NOTE: Pins 38, 39, 41 and 43 of the
TB1305FG are not used . Connect them to
GND.
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