TDA8340 Datasheet, PDF (2/14 Pages) NXP Semiconductors – Television IF amplifier and demodulator

Philips Semiconductors
Television IF amplifier and demodulator
Product specification
TDA8340
TDA8341
DESCRIPTION
The TDA8340;Q and TDA8341;Q are integrated IF
amplifier and demodulator circuits for colour or black/white
television receivers, the TDA8340;Q is for application with
n-p-n tuners and the TDA8341;Q for p-n-p tuners.
The TDA8340;Q and TDA8341;Q are pin-compatible
successors with improved performance to types
TDA2540/2541;Q and TDA3540/3541;Q.
Features
• Full range gain-controlled wide-band IF amplifier
• Linear synchronous demodulator with excellent
intermodulation performance
• White spot inverter
• Wide-band video amplifier with noise protection
• AFC circuit with AFC on/off switching and
sample-and-hold function
• Low impedance AFC output
• AGC circuit with noise gating
• Tuner AGC output for n-p-n tuners (TDA8340) or p-n-p
tuners (TDA8341)
• External video switch for switching-off the video output
• Reduced sensitivity for high sound carriers
• Integrated filter to limit second harmonic IF signals
• Wide supply voltage range
• Requires few external components
QUICK REFERENCE DATA
PARAMETER
Supply voltage (pin 11)
Supply current (pin 11)
IF input sensitivity
(r.m.s. value)
IF gain control range
Video output voltage
(peak-to-peak value)
Signal-to-noise ratio
AFC output voltage swing
(peak-to-peak value)
CONDITIONS
SYMBOL
V_CC = V_11-13
I₁₁
white signal;
10% top sync
V_i = 10 mV
V_1-16(rms)
G_v
V_{12−13(p−p)}
S/(S+N)
V_5-13(p-p)
MIN.
9,4
30
TYP.
12
42
MAX. UNIT
13,2 V
55
mA
20
40
80
µV
−
67
−
dB
2,4
2,7 3,0 V
50
58
−
dB
−
10
−
V
PACKAGE OUTLINES
TDA8340; TDA8341:
16-lead DIL; plastic (SOT38); SOT38-1; 1996 november 29.
November 1987
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