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PDF TA1274F Data sheet ( Hoja de datos )
| Número de pieza | TA1274F | |
| Descripción | PIF/SIF SYNCHRONOUS DEMODULATOR IC | |
| Fabricantes | Toshiba Semiconductor | |
| Logotipo |  |
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TA1274F
TOSHIBA BIPOLAR LINEAR INTEGRATED CIRCUIT SILICON MONOLITHIC
TA1274F
PIF / SIF SYNCHRONOUS DEMODULATOR IC
FEATURES
· Compatible pin assignment to TA1267AF
PIF CIRCUIT
· True synchronous PIF demodulator
· 3-stages gain controlled PIF amplifier
· High speed response PIF AGC detector
· Buzz reducer
· Equalizer for video output
· AFT detector without extra reference circuit
SIF CIRCUIT
· Wide range gain controlled SIF amplifier
(control range : 70dB typ.)
· Alignment-free PLL-FM demodulator
Weight: 0.27 g (typ.)
1 2002-12-20
1 page  
PIN
No.
NAME
FUNCTION
13 RF AGC delay adj.
This terminal is for RF AGC delay
point adjustment.100 µA current is
outputted from this terminal. Connect
a resister (5.6 kΩ) and a volume (10
kΩ) between GND in series.
14 AFT Defeat SW
15 (No function)
16 2 nd SIF input
This terminal is AFT defeat switch.
To open this terminal, AFT function is
activate.
To connect GND this terminal, AFT
function is not activate. And terminal
No.20 goes to 1 / 2 VCC.
This terminal must be connected to
VCC.
This terminal 2nd SIF input.
This terminal must be decoupled
outer circuit on D.C.
TA1274F
INTERFACE CIRCUIT
―
17 AF output
Output resistance of this terminal is
7.5 kΩ.
18
19
VCO tank
Connect tank for VCO between these
terminals.
Capacitance of the VCO tank is 27 pF.
5 2002-12-20
5 Page 
11 Page | ||
| Páginas | Total 22 Páginas | |
| PDF Descargar | [ Datasheet TA1274F.PDF ] | |
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