參數(shù)資料
型號(hào): TB1274BFG
元件分類: 消費(fèi)家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PQFP48
封裝: 10 X 14 MM, 0.80 MM PITCH, QFP-48
文件頁數(shù): 23/37頁
文件大小: 839K
代理商: TB1274BFG
TB1274BFG
2005-08-18
3
TERMINAL DESCRIPTIONS
(YC-VCC/SYNC-VCC/D-VDD=5V and Ta=25℃, unless otherwise specified)
PIN
No.
PIN NAME
FUNCTION
INTERFACE CIRCUIT
INPUT / OUTPUT
SIGNALS
1
CVBS1/Y1-IN
Input CVBS1/Y1 signal through a
clamping capacitor.
1
28
32
250Ω
50μ
A
2.5V
50μ
A
CVBS : 1Vp-p
Y : 1Vp-p(with sync)
DC : 1.8V
2
SYNC-IN
Input signal to synchronize.
2
12
16
1.5V
1kΩ
1Vp-p (with sync)
DC : 1.7V
3
CVBS-OUT
CVBS or Y+C signal output pin.
3
28
32
8kΩ
50Ω
700μ
A
100Ω
2Vp-p(with sync)
DC : 0.6V
4
VS
Output
pin
of
vertical
synchronizing signal.
Minimum pull-up resister is
6.8kΩ.
4
12
16
50Ω
120μ
A
Hi
Low
4.7V≦Hi≦5.2V
0V≦Low≦0.8V
5
COMB Y-IN
Input luminance signal from
Comb filter through a clamping
capacitor.
5
28
32
250Ω
2.5V
1Vp-p(with sync)
DC : 1.8V
6
D-VDD
Power
supply
pin
for
DDS/BUS/V-CD/H-CD sections.
DC 5V
7
COMB C-IN
/ FORCED-S
Input chroma signal from Comb
filter
through
a
clamping
capacitor. When this pin is
connected to Vcc, color killer is
OFF and SECAM ID is ON
forcibly. (Forced SECAM mode)
Refer
to
FUNCTION
DESCRIPTION.
7
28
32
250Ω
2.4V
40kΩ
3.5V
50kΩ
20kΩ
40pF
C
Forced-S
0.3Vp-p(Burst)
DC : 2.4V
4.0V≦Forced-S≦5.0V
(Th : 3.5V)
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