Document
TB1305FG, TB1308FG
TOSHIBA BiCMOS Integrated Circuit Silicon Monolithic
TB1305FG,TB1308FG
Component SW, Sync Separation and H/V Frequency Counter IC for TVs
The TB1305FG and TB1308FG include a component SW block, a prefilter for AD conversion, sync separation and H/V format detectors for TV component video signals. The TB1305FG and TB1308FG contribute to reduction in the proportion of PCB occupied by LCR filters and to the simplification of www.DataSheet4U.com designs on analog interfaces. 2 The TB1305FG and TB1308FG are equipped with an I CBUS interface through which various functions can be controlled.
P-QFP48-1014-0.80
Weight: 0.83 g (typ.)
Features
COMPONENT BLOCK ・ Component video input: TB1305FG 2 channels, TB1308FG 3 channels; RGB available ・ Component video output ・ Gain switching: 0dB / +6dB ・ Bandwidth filter: prefilter for ADC; 4.2 to 31MHz variable) SYNC SEPARATION BLOCK ・ Supports 525/60i/60p, 625/50i/50p, 750/50p/60p, 1125/50i/60i/50p/60p, 1250/50i, VGA @60, SVGA@60, XGA@60, SXGA@60, UXGA@60 ・ HD/VD input: 2 channels; positive and negative input acceptable ・ HD/VD output: positive and negative output selectable ・ Masking pseudo-sync for copyguard signal OTHERS ・ Line detector for D-pin (2 channels) ・ Horizontal and vertical frequency counter ・ Format detection circuit for input signal ・ Automatic sync process switching mode
Lineup Part No. TB1305FG TB1308FG Number of component video inputs 2 3
1
2007-07-11
TB1305FG, TB1308FG
Block Diagram
IICBUS
LINE1 DET
VD2-IN
www.DataSheet4U.com
BIAS BIAS
IICBUS
HD2-IN ADDRESS SYNC-OUT VD-OUT HD-OUT H Vcc Y-OUT H GND Cb-OUT Vf0ADJ Cr-OUT NC (SYNC3-IN)
LINE2 DET LINE3 DET SW DET
SYNC TIP /BIAS
Y2/G2-IN LINE2-2
BIAS
Cb2/B2-IN LINE3-2
POL POL
SYNC SW
H-C/D V-C/D FREQ COUNT DUMMY SYNC
V SEP
SYNC SW
BIAS
Cr2/R2-IN SW LINE2
H/V SEP BAND WIDTH
YCbCr SW
SYNC TIP CLAMP
SYNC1-IN NC LINE1-1
+6dB AMP MUTE
+6dB AMP MUTE
BAND WIDTH
YCbCr SW
SYNC TIP /BIAS
Y1/G1-IN LINE2-1
+6dB AMP MUTE
BAND WIDTH
YCbCr SW
BIAS
Cb1/B1-IN LINE3-1
SYNC TIP CLAMP
BIAS
Cr1/R1-IN
NOTE: Pins 38, 39, 41 and 43 are available for the TB1308FG only. The pins are NC for the TB1305FG. The TB1305FG and TB1308FG do not support weak signals, ghost signals or other non-standard signals. Some functional blocks, circuits or constants may be omitted or simplified in the block diagram for explanatory purposes.
2
2007-07-11
TB1305FG, TB1308FG
Pin Functions
The equivalent circuit diagrams may be simplified or some parts of them may be omitted for explanatory purposes.
Pin No. Pin Name Function Interface Circuit Input Signal/Output Signal
31
3.3V
VCC pin for the logical circuits. 22 DIG VCC Supply power through a resistor from pin 31 like the Application Circuit. This pin voltage is clipped to 3.3 V (typ.) by the internal regulator.
22
50Ω 50Ω
500Ω
3.3 V (typ.)
33
20 DIG GND H VCC H GND C VCC C GND GND pin for the logical circuits. VCC pin for the sync circuits. Connect 5.0 V (typ.) GND pin for the sync circuits. VCC pin for the video circuits. Connect 5.0 V (typ.) GND pin for the video circuits. Y or G input pin. 5 14 39 Y1/G1-IN Y2/G2-IN Y3/G3-IN Input the signal via a clamp capacitor. The clamp system is selectable by CLAMP register. NOTE: Pin 39 is not available for the TB1305FG. It is an NC pin. Y or CVBS input pin. 47 Y-IN Input the Y or CVBS signal in NTSC, PAL or SECAM from an AV-SW via a clamp capacitor. The clamp system is selectable by CLAMP register. 1 3 10 12 43 41 Cr1/R1-IN Cb1/B1-IN Cr2/R2-IN Cb2/B2-IN Cr3/R3-IN Cb3/B3-IN Cb/Cr, Pb/Pr or B/R input pin. Input the signal via a capacitor. NOTE: Pins 41 and 43 are not available for the TB1305FG. They are NC pins.
1 3 10 12 (43) (41) 46
200Ω 200Ω
⎯ ⎯ ⎯ ⎯ ⎯
⎯ 5.0 V (typ.) ⎯ 5.0 V (typ.) ⎯ Sync tip level: 2.1 V (typ.)
46
www.DataSheet4U.com 31
33 46 44
Bias level: 2.7 V (typ.) RGB/YCbCr/YPbPr signal amplitude: 0.7 Vp-p (without sync)
2.9V/1.5V
200Ω
5 14 (39) 47
200Ω
200Ω
100kΩ 12kΩ 2.8V
Sync tip level: 2.1 V (typ.)
44
Bias level: 2.7 V (typ.) Y/CVBS signal’s amplitude: 1.0 Vp-p (with sync)
2.7 V bias (typ.) RGB/YCbCr/YPbPr signal amplitude: 0.7 Vp-p (without sync)
44
100kΩ 12kΩ 2.8V
46
1.7 V bias (typ.)
5V
Chroma signal input pin. Input C signal from AV-SW via a capacitor. 45 C-IN When this pin’s voltage is High, TEST mode for shipping is active. The pin voltage must be less than 3.6 V during operating.
45
200Ω 30.2kΩ
C
Prohibited 3.6V
1.7V (typ)
1.5V TEST
44
0V
Sync tip level: 1.75 V (typ.)
31
10kΩ
8 16 38
SYNC1-IN SYNC2-IN SYNC3-IN
Composite SYNC input pin to separate into H- and V-SYNC. Input the signal via a resister and a clamp capacitor. NOTE: Pin 38 is not available for the TB1305FG. It is an NC pin.
1Vp-p
8 16 (38) 33
or
1Vp-p
3
2007-07-11
TB1305FG, TB1308FG
Pin No.
Pin Name HD input pin.
Function
Interface Circuit
Input Signal/Output Signal
24 26
HD1-IN HD2-IN
Input a separated horizontal sync signal (1.0 to 2.0 Vp-p) via a resister and a coupling capacito.