TB1328FG Toshiba, TB1328FG Datasheet - Page 14

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TB1328FG

Manufacturer Part Number
TB1328FG
Description
Manufacturer
Toshiba
Datasheet

Specifications of TB1328FG

Function
Programmable audio/video switch and frequency detection
Features
CVBS, S-Video or YcbrCr/RGB or D-connector, auto sync processor, pre-filter, dummy HD/VD output
Operating Voltage
9V,5V
Package
QFP64 (lead-free)
HV-SEP1(2)
SYNC LPF1(2)
A-SYNC
SIG LPF
PS MASK
Register Name
Switches the separation level.
Remark: The separation level is changed according to the ratio of negative sync
Turns on the LPF for the sync-tip clamp.
Automatic sync processing mode.
Remark: SYNC1-IN (pin25) is not available when A-SYNC=1(ON). In this case,
Turns on the LPF for the sync input pin (pin25; SYNC1-IN).
Switches the mask mode for pseudo-sync.
(1)OFF mode is used for “Sync on G” input.
The H/V sync separation level to SYNC1(2)-IN (pin 25 (11)) is switched.
SYNC LPF1(2) for SYNC1(2)-IN pin changes the speed of sync-tip clamp
response. Turn this function on for no input detection.
Sync processing mode is changed in accordance with the results obtained by the
internal format detection circuits. Format detection is performed for SYNC2-IN or
HD/VD-IN signal selected by HV DET. The result of detection is returned to H,V
FORMAT, H,V FM2 and FORMAT.
HV FREQ setting is invalid when this mode is active.
When no input detection for weak strength signals is required, turn this function on
to reduce noise on the input. Turn this function off for detections such as H, V
FORMAT and H, V FREQ DET.
00: LOW
0: OFF
0: OFF (Manual switching mode by HV FREQ setting)
1: ON
0: OFF
0: ON (Normal)
width per 1H period.
format detection and H/V separation are applied to SYNC2-IN (pin11).
14
Function
11: HIGH
1: ON
1: ON
1: OFF (for “Sync on G”)
TB1328FG
Preset Value
2006-11-13
LOW
OFF
OFF
OFF
(00)
ON
(0)
(0)
(0)
(0)

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