TB1328FG Toshiba, TB1328FG Datasheet - Page 18

• Manufacturer Part Number: TB1328FG
• Manufacturer: Toshiba

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)

Note 1: In determining the decision algorithms (detection range, detection times and so on) for H/V frequency detection,
Note 2: The READ BUS flags indicate that a certain signal is detected at a given moment. However, the detection result
DC1 ~ 10
S1 ~ 6
V FREQ DET
H FREQ DET
Register Name
it is necessary to take into account both previously mentioned cautions and other factors such as signal
conditions and I
will not be very reliable if only one flag is checked. To obtain accuracy, it is recommended that a judgment will
be made on the basis of confirming several times and verifying agreement among the majority of flags read in
a sequence and/or at the same time.
DC voltage detection for D-pin or S-pin
Remark1; See below for the relationship between this function number and the pin number.
Remark2; for D-pin
Remark3; for S-pin
Detects if S-pin is connected or not.
Remark1;
Remark2; See below for the relationship between this function number and the pin number.
Counts the vertical frequency of an input selected by SYNC SW.
To calculate the vertical frequency (Y) ;
Convert data read from V FREQ DET into decimal value and call it X.
The error range of X is −1 to +1.
Counts the horizontal frequency of an input selected by SYNC SW.
To calculate the horizontal frequency (Y) ;
Convert data read from H FREQ DET into decimal value and call it X.
The error range of X is −1 to +1.
2
CBUS data transmission in the course of prototype TV set evaluation.
00: Low (0 V)
0: Low (not-connected)
When V-DET=0;
When V-DET=1;
Vertical frequency (Y) = 1 ÷ (X × 2.8607 × 10
When for SYNC-IN;
When for HD/VD-IN;
Horizontal frequency (Y) = 1 ÷ (0.003 ÷ X) [Hz]
DC1 - pin 1, DC2 - pin 14, DC3 - pin 27, DC4 - pin 29, DC5 - pin 31, DC6 - pin 34, DC7 - pin 49,
DC8 - pin 51, DC9 - pin 53, DC10 - pin 55,
SW LINE: 00: Connected
LINE1:
LINE2:
LINE3:
An external circuit is necessary to use this function. Refer to Function description.
S1 - pin 38, S2 - pin 44, S3 - pin 48, S4 - pin 50, S5 - pin 56, S6 - pin 62
00000000: over 3.5 kHz
01010000～11111111: No input
00000000: over 3.5 kHz
10011010～11111111: No input
00000001: No input
00000000: No input
00: 525 (480)
00: interlace
00: 4:3
00: 4:3
01: Mid (2.2 V)
11111111: over 85kHz
11111111: over 85kHz
01: ----
01: 750 (720)
01: ----
01: 4:3 letter box
01: 4:3 letter box
01001111: 44 Hz or less
10011001: 23 Hz or less
18
1: Open (connected)
Function
-4
) [Hz]
10: Undefined
10: ----
10: ----
10: ----
10: ----
10: ----
11: Not-connected
11: 1125 (1080)
11: progressive
11: 16:9
11: 16:9
11: High (5 V)
TB1328FG
2006-11-13