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PDF TB1305FG Data sheet ( Hoja de datos )
| Número de pieza | TB1305FG | |
| Descripción | (TB1305FG / TB1308FG) Sync Separation and H/V Frequency Counter IC | |
| Fabricantes | Toshiba Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de TB1305FG (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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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.comdesigns on analog interfaces.
The TB1305FG and TB1308FG are equipped with an I2CBUS
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
1 page  
Pin
No.
Pin Name
Function
21 XTAL
Crystal connection pin.
Connect a 3.579545 MHz crystal for NTSC
demodulation to generate internal clocks.
35 Vf0ADJ
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A filter pin to adjust bandwidth filter
characteristics.
TB1305FG, TB1308FG
Interface Circuit
31
500Ω
21 2.5kΩ
35 200Ω
200Ω
33
46
44
46
Input Signal/Output Signal
⎯
⎯
40 BIAS FIL
A filter pin for internal bias circuits.
18 SDA
SDA pin for I2CBUS.
19 SCL
SCL pin for I2CBUS.
27 ADDRESS
Slave address switching pin.
Connect to 5 V Vcc or GND. Or leave this
pin open.
7
NC
37
These pins are not used.
Connect to GND.
NOTE: Pins 38, 39, 41 and 43 of the
TB1305FG are not used . Connect them to
GND.
40 1kΩ
800Ω
5kΩ
18
50Ω
ACK
5kΩ
19
44
31
22
SDA
20
31
22
20
46
27
1kΩ
Th1
Th2
44
⎯
⎯
Th: 2.25V(typ.)
Th: 1.50V(typ.)
H to L: 1.50 V (typ.)
L to H: 2.25 V (typ.)
Th: 2.25V(typ.)
Th: 1.50V(typ.)
H to L: 1.50 V (typ.)
L to H: 2.25 V (typ.)
5 V Vcc:
Open:
GND:
DCH/DDH
DAH/DBH
D8H/D9H
⎯
5 2007-07-11
5 Page 
TB1305FG, TB1308FG
Note 1: In determining the decision algorithms (detection range, detection times and so on) for H/V frequency detection,
it is necessary to take into account both previously mentioned cautions and other factors such as signal
conditions and I2CBUS data transmission in the course of prototype TV set evaluation.
Note 2: The READ BUS flags indicate that a certain signal is detected at a given moment. However, the detection result
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.
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11 2007-07-11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet TB1305FG.PDF ] | |
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