1996 Jun 06

2

Philips Semiconductors

Product specification

9 V VHF and UHF mixer/oscillator for TV

and VCR cable tuners

TDA5630BT

FEATURES

• Balanced mixer with a common emitter input for band A

(single input)

• 2-pin oscillator for band A

• Balanced mixer with a common base input for band C

• 3-pin oscillator for band C

• Local oscillator buffer output for external prescaler

• SAW filter preamplifier with a low output impedance to

drive a SAW filter

• Band gap voltage stabilizer for oscillator stability

• Electronic band switch.

APPLICATIONS

• Cable tuners for TV and VCR

(switched concept for VHF)

• Recommended RF bands for Europe:

48.25 to 105.25 MHz, 112.25 to 294.25 MHz and

471.25 to 855.25 MHz

• Recommended RF bands for the USA:

55.25 to 133.25 MHz, 139.25 to 361.25 MHz and

367.25 to 801.25 MHz.

GENERAL DESCRIPTION

The TDA5630BT is a monolithic integrated circuit that

performs VHF and UHF mixer/oscillator functions in TV

and VCR cable tuners. With a proper oscillator application

and by using a switchable inductor to split the VHF band

into two sub-bands, the full VHF/UHF TV bands can be

covered. This low-power mixer/oscillator requires a power

supply of 9 V and is available in a very small package.

The device gives the designer the capability to design an

economical and physically small cable tuner.

The tuner development time can be drastically reduced by

using this device.

Frequency bands are determined by the external tank

circuit. They can be adapted to various standards.

QUICK REFERENCE DATA

Note

1. The limits are related to the tank circuits used in Fig.11 and the intermediate frequency. Frequency bands may be

adjusted by the choice of external components.

ORDERING INFORMATION

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

supply voltage

−

9.0

−

V

supply current

−

48

−

mA

frequency range (picture carrier)

RF input; band A; note 1

45

−

470

MHz

RF input; band C; note 1

430

−

860

MHz

voltage gain

band A

−

25

−

dB

band C

−

36

−

dB

NF

noise figure

band A

−

7.5

−

dB

band C

−

9.0

−

dB

output voltage to get 1% cross

modulation in channel

band A

−

118

−

dB

µV

band C

−

120

−

dB

µV

TYPE

NUMBER

PACKAGE

NAME

DESCRIPTION

VERSION

TDA5630BT

SO16

plastic small outline package; 16 leads; body width 3.9 mm

SOT109-1