TDA8012AM Datasheet, PDF (2/16 Pages) NXP Semiconductors – Low power PLL FM demodulator for satellite TV receivers

Philips Semiconductors
Low power PLL FM demodulator for
satellite TV receivers
Product specification
TDA8012AM
FEATURES
• High input sensitivity
• Fully balanced two-pin Voltage Controlled Oscillator
(VCO)
• Low input impedance (50 Ω)
• Low impedance video baseband output
• Internal voltage stabilizer
• Keyed Automatic Frequency Control (AFC) or peak AFC
• Carrier detector
• Automatic Gain Control (AGC) output.
GENERAL DESCRIPTION
The TDA8012AM is a sensitive Phase Locked Loop (PLL)
Frequency Modulation (FM) demodulator for the second
Intermediate Frequency (IF) in satellite receivers.
It provides Automatic Gain Control (AGC) and Automatic
Frequency Control (AFC) outputs that can be used to
optimize the level and the frequency of the signal applied
at the input. During the search procedure, the AFC output
provides a signal used for carrier detection.
APPLICATIONS
• Digital Broadcast System (DBS) satellite receivers.
QUICK REFERENCE DATA
SYMBOL
V_CC
I_CC
V_i
f_c
V_o(p-p)
PARAMETER
supply voltage
supply current
input level
operating carrier frequency
video output signal amplitude
(peak-to-peak value)
CONDITIONS
V_CC = 5 V; T_amb = 25 °C
frequency deviation = 25 MHz
MIN.
4.75
40
53
−
−
TYP.
5.0
50
57
480
1
MAX. UNIT
5.25 V
60
mA
61
dBµV
−
MHz
−
V
ORDERING INFORMATION
TYPE
NUMBER
TDA8012AM
NAME
SSOP20
PACKAGE
DESCRIPTION
plastic shrink small outline package; 20 leads; body width 4.4 mm
VERSION
SOT266-1
1997 May 26
2