TB1311AFG Toshiba, TB1311AFG Datasheet - Page 18

• Manufacturer Part Number: TB1311AFG
• Manufacturer: Toshiba

Specifications of TB1311AFG

• Function: Programmable audio/video switching and frequency detection
• Features: CVBS, S-Video, YCbCr/RGB, SCART or D-pin, auto sync processor, pre-filter, dummy HD/VD output
• Operating Voltage: 9V, 5V
• Package: QFP80 (lead-free)

Note 1: In determining the decision algorithms (detection range, detection times, and so on) for H/V frequency
Note 2: The READ BUS flags indicate that a certain signal is detected at a given moment. However, the detection
HV-OUT FORMAT
DC1 to 12
S1 to 8
V FREQ DET
H FREQ DET
Register Name
detection, it is necessary to take into account both previously mentioned cautions and other factors such as
signal conditions and I
result will not be very reliable if only one flag is checked. To obtain accuracy, it is recommended that a
judgment should 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.
Format detection result. H and V dummy output frequencies depend on this result.
DC voltage detection for D-pin or S-pin
Remark 1: See below for the relationship between this function number and the pin number.
Remark 2; D-pin
Remark 3; about S-pin
Detects whether S-pin is connected or not.
Remark 1:
Remark 2: See below for the relationship between this function number and the pin number.
Counts the vertical frequency of an input selected by SYNC SW.
How to calculate a vertical frequency (Y):
Convert data read from V FREQ DET into a 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.
How to calculate a horizontal frequency (Y):
Convert data read from H FREQ DET into a decimal value and call it X.
The error range of X is 1 to 1.
00000: 15.625 kHz, 50 Hz (625i)
00010: 31.25 kHz, 50 Hz (625p)
00100: 28.125 kHz, 50 Hz (1125/50i)
00110: 37.5 kHz, 50 Hz (750/50p)
01000: 31.25 kHz, 50 Hz (1250i)
01010: 64 kHz, 60 Hz (1125/60p, SXGA @60 Hz) 01011: 75 kHz, 60 Hz (UXGA @60 Hz)
01100: 56.25 kHz, 50 Hz (1125/50p)
01101 to 01111: Not available
10000: 15.734 kHz, 30 Hz (525/30p)
10010: 28.125 kHz, 25 Hz (1125/25p)
10100: 27 kHz, 48 Hz (1125/24sf)
10101 to 11111: Not available
00: Low (0 V)
0: Low (not connected)
When V-DET = 0:
When V-DET = 1:
Vertical frequency (Y)
When for SYNC-IN;
When for HD/VD-IN;
Horizontal frequency (Y)
DC1 - pin 39, DC2 - pin 40, DC3 - pin 44, DC4 - pin 46, DC5 - pin 48, DC6 - pin 50, DC7 - pin 60,
DC8 - pin 64, DC9 - pin 66, DC10 - pin 68, DC11 - pin 70, DC12 - pin 80
SW LINE: 00: Connected
LINE1:
LINE2:
LINE3:
An external circuit is necessary to use this function. Refer to the Function description.
S1 - pin 45, S2 - pin 47, S3 - pin 53, S4 - pin 59, S5 - pin 65, S6 - pin 67, S7 - pin 73, S8 - pin 79
00000000: over 3.5 kHz
01010000 to 11111111: No input
00000000: over 3.5 kHz
10011010 to 11111111: No input
00000001: No input
00000000: No input
2
CBUS data transmission in the course of prototype TV set evaluation.
00: 525 (480)
00: Interlace
00: 4:3
00: 4:3
1
01: Mid (2.2 V)
Preliminary
1
11111111: over 85 kHz
11111111: over 85 kHz
(X
(0.003
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
2.8607
18
1: Open (connected)
X) [Hz]
10
Function
-4
) [Hz]
10: Undefined
00001: 15.75 kHz, 60 Hz (525i)
00011: 31.5 kHz, 60 Hz (525p, VGA @60 Hz)
00101: 33.75 kHz, 60 Hz (1125/60i)
00111: 45 kHz, 60 Hz (750/60p, XGA @60 Hz)
01001: 37.9 kHz, 60 Hz (SVGA @60 Hz)
10001: 27 kHz, 24 Hz (1125/24p)
10011: 33.75 kHz, 30 Hz (1125/30p)
10: ----
10: ----
10: ----
10: ----
10: ----
11: Not connected
11: 1125 (1080)
11: Progressive
11: 16:9
11: 16:9
11: High (5 V)
TB1311AFG
2005-12-20