tda5745ts NXP Semiconductors, tda5745ts Datasheet - Page 2

• Manufacturer Part Number: tda5745ts
• Description: Low Power Mixers/oscillators For Hyperband Tuners
• Manufacturer: NXP Semiconductors

Philips Semiconductors
FEATURES
QUICK REFERENCE DATA
ORDERING INFORMATION
1998 Mar 09
V
I
T
T
f
G
F
V
TDA5744TS;
TDA5745TS
CC
i(RF)
Mixers/oscillators for hyperband tuners
Balanced mixer with a common emitter input for VHF
(single input)
Balanced mixer with a common base input for UHF
(double input)
4-pin common emitter oscillator for VHF
4-pin common emitter oscillator for UHF
Electronic band switch
IF amplifier with a low output impedance to drive the
SAW filter directly ( 2 k load)
Low power, low radiation and small size
Pin compatible single-chip synthesizer mixer/oscillator
for Full Scale Tuners (FST) are available: TDA6404,
TDA6405 and TDA6405A.
stg
amb
CC
o
Low power mixers/oscillators for
hyperband tuners
V
NUMBER
SYMBOL
TYPE
supply voltage
supply current
IC storage temperature
operating ambient temperature
RF input frequency
voltage gain
noise figure
output voltage causing 1% cross
modulation in channel
SSOP24
NAME
PARAMETER
plastic shrink small outline package; 24 leads; body width 5.3 mm
operating
VHF band
UHF band
VHF band
UHF band
VHF band
UHF band
VHF band
UHF band
2
DESCRIPTION
APPLICATIONS
GENERAL DESCRIPTION
The TDA5744 and TDA5745 are 2-band mixers/oscillators
intended for VHF/UHF and hyperband tuners (see Fig.1).
The Integrated Circuits (ICs) include two double balanced
mixers and two oscillators, for the VHF and UHF band, and
an IF amplifier. With proper oscillator application and by
using a switchable inductor to split the VHF band into two
sub-bands (the full VHF/UHF and hyperband) the TV
bands can be covered. Two pins are available between
the mixer output and the IF amplifier input to enable IF
filtering for improved signal handling. Band selection is
made by band switch pin BS.
PACKAGE
CONDITIONS
Hyperband tuners for Europe using a 2-band
mixer/oscillator in a switched concept.
TDA5744; TDA5745
4.5
45.25
407.25
MIN.
40
20
Preliminary specification
5
58
27
38
8
8.5
119
118
TYP.
5.5
+150
+85
399.25 MHz
855.25 MHz
MAX.
VERSION
SOT340-1
dB
dB
dB
dB V
V
mA
dB
dB V
UNIT
C
C