tda8349a NXP Semiconductors, tda8349a Datasheet - Page 2

• Manufacturer Part Number: tda8349a
• Description: Multistandard If Amplifier And Demodulator
• Manufacturer: NXP Semiconductors

Philips Semiconductors
GENERAL DESCRIPTION
The TDA8349A is a multistandard IF amplifier and demodulator with AGC and AFC functions for television receivers.
The device has a video recognition circuit and a video switch for internal or external video for full SCART applications.
FEATURES
QUICK REFERENCE DATA
ORDERING AND PACKAGE INFORMATION
Note
1. SOT146-1; 1996 November 29.
February 1991
V
I
V
G
V
S/N
V
EXTENDED
TYPE NUMBER
TDA8349A
14
Full-range gain-controlled wideband IF amplifier up to 60 MHz
Wide-band video amplifier with good linearity and a class AB output stage to ensure a very low output impedance
Supply independent video output level
Small second harmonic IF output
AGC circuit which operates on top sync level (negative modulation) or on white level (positive modulation) or on top
level (MAC) with reduced sensitivity for high sound carriers
AFC circuit with an internal 90 phase shift circuit, a sample-and-hold circuit for negatively modulated signals to reduce
video dependent AFC information and an analog or digital output
Video recognition possibility based on horizontal pulse duty cycles
Video switch for selection of internal or external video signals
Wide supply voltage range and ripple rejection
Requires few external components
Tuner AGC output for npn and pnp tuners
14-17
1-2(RMS)
11-17(p-p)
8-17(p-p)
Multistandard IF amplifier and
demodulator
v
SYMBOL
supply voltage (pin 14)
supply current (pin 14)
IF input sensitivity (RMS value)
IF gain control range
video output voltage (peak-
to-peak value)
signal-to-noise ratio
AFC output voltage swing
(peak-to-peak value)
PARAMETER
PINS
20
PIN POSITION
DIL
V
V
i
i
CONDITIONS
= 10 mV
= 10 mV
2
PACKAGE
10.2
40
66
54
10
MATERIAL
plastic
1.7
MIN.
12
55
50
72
1.9
61
TYP.
Product specification
13.2
65
80
2.1
11
TDA8349A
MAX.
CODE
SOT146
V
mA
dB
V
dB
V
V
UNIT
(1)