参数资料
型号: TB1311AFG
元件分类: 信号分离
英文描述: SYNC SEPARATOR IC, PQFP80
封装: 14 X 20 MM, 0.80 MM PITCH, PLASTIC, QFP-80
文件页数: 7/46页
文件大小: 948K
代理商: TB1311AFG
TB1311AFG
2006-05-29
15
Register Name
Function
Preset Value
V-DET
Switches the V format detection mode.
0: 50/60Hz only
1: Full detection
50/60 only
(0)
HD WIDTH
Switches the width of HD-OUT (pin 12) from SYNC2-IN (pin 15).
0: WIDE
1: NARROW
Remark: HD WIDTH = 1 (NARROW) is recommended for the 1125/50p/60p format
owing to crosstalk from HD-OUT to video signals so that spike noises on
video signals will occur.
WIDE
(0)
HV-POL
Switches the polarity of HD/VD output.
The polarity of HD/VD OUT (pin 12, 13) is set.
0: Positive
1: Negative
Positive
(0)
HV DET
Selects the input for format detection.
When A-SYNC = 0 (Manual Mode)
0: SYNC1-IN (pin 33)
1: HD/VD-IN (pins 31/30)
When A-SYNC = 1 (Automatic Mode)
This function is invalid. The input is selected by HV OUT.
SYNC
(0)
HV OUT
Switches the outputs from HD/VD-OUT (pin 12/13).
0: SYNC2-IN (pin 15)
1: HD/VD-IN (pins 31/30)
SYNC2-IN
(0)
H DMY
Outputs the dummy HD at no input.
The frequency of the dummy HD output depends on the HV FREQ2 setting (when
A-SYNC = OFF) or HV-OUT FORMAT (when A-SYNC = ON). No-input detection
is based on H IN result.
0: OFF
1: ON (Dummy HD output at no input)
Note: The HD output does not synchronize with input sync, when A-SYNC = OFF
and when a sync is input.
OFF
(0)
V DMY
Outputs the dummy VD at no input.
The frequency of the dummy VD output depends on HV FREQ2 setting (when
A-SYNC = OFF) or HV-OUT FORMAT (when A-SYNC = ON). No-input detection
is based on the V IN result.
0: OFF
1: ON (Dummy VD output at no input)
Note: The VD output does not synchronize with input sync, when A-SYNC = OFF
and when a sync is input.
OFF
(0)
Changes FB2-OUT pin (pin 22) function.
In FB2 PIN-M/L = ON, the level of pin 22 becomes HIGH when the Read registers
below change. The level of pin 22 becomes LOW after the I
2CBUS reading. The
pin voltage is used for a sign to detect input signal changes for a microprocessor.
For FB2 PIN-M/L = ON, set A-SYNC = 1 (ON) and FB2 MUTE = 1 (MUTE).
FB2 PIN-M
FB2 PIN-L
Mode
0
OFF (FB2-OUT)
0
1
Mode 1 for no-input detection
1
0
Mode 2 for format detection
1
Not available
FB2 PIN-M, L
Referential Read registers for FB2 PIN-M/L = Mode 1:
FB-DET1, SIG-DET
Referential Read registers for FB2 PIN-M/L = Mode 2:
H-FM2, V-FM2, H-IN, V-IN, HV-OUT FORMAT
OFF
(00)
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