Document
INTEGRATED CIRCUITS
DATA SHEET
TDA5736; TDA5737 5 V VHF, hyperband and UHF mixers/oscillators for TV and VCR 3-band tuners
Product specification Supersedes data of 1996 Oct 25 File under Integrated Circuits, IC02 1997 Feb 24
Philips Semiconductors
Product specification
5 V VHF, hyperband and UHF mixers/oscillators for TV and VCR 3-band tuners
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 bands B and C (balanced input) • 3-pin oscillator for band B • 4-pin oscillator for band C • Local oscillator buffer output for external prescaler • SAW filter preamplifier with a low output impedance to drive the SAW filter directly • Band gap voltage stabilizer for oscillator stability • Electronic band switch • External IF filter between the mixer output and the IF amplifier input. APPLICATIONS • 3-band all channel TV and VCR tuners • Any standard. QUICK REFERENCE DATA SYMBOL VP IP fRF PARAMETER supply voltage supply current frequency range RF input; band A; note 1 RF input; band B; note 1 RF input; band C; note 1 Gv voltage gain band A band B band C NF noise figure band A band B band C Vo output voltage level causing 1% cross modulation in channel band A band B band C Note CONDITIONS
TDA5736; TDA5737
GENERAL DESCRIPTION The TDA5736 and TDA5737 are monolithic integrated circuits that perform the mixer/oscillator functions for bands A, B and C in TV and VCR tuners. These low power mixer/oscillators require a power supply of 5 V and are available in a very small package. These devices give the designer the capability to design an economical and physically small 3-band tuner. They are suitable for European standards, as illustrated in Fig.17, with the following RF bands: 48.25 to 168.25 MHz, 175.25 to 447.25 MHz and 455.25 to 855.25 MHz. With an appropriate tuned circuit, they are also suitable for NTSC all channel tuners (USA and Japan). The tuner development time can be drastically reduced by using these devices.
MIN. − − 41 166 446 − − − − − − − − −
TYP. 5.0 50 − − − 23 34 34 7.5 8 9 116 115 115
MAX. − − 171 451 861 − − − − − − − − −
UNIT V mA MHz MHz MHz dB dB dB dB dB dB dBµV dBµV dBµV
1. The limits are related to the tank circuits used in Fig.17 and the intermediate frequency. Frequency bands may be adjusted by the choice of external components.
1997 Feb 24
2
Philips Semiconductors
Product specification
5 V VHF, hyperband and UHF mixers/oscillators for TV and VCR 3-band tuners
ORDERING INFORMATION TYPE NUMBER TDA5736T TDA5736M TDA5737M PACKAGE NAME SO24 SSOP24 SSOP24 DESCRIPTION
TDA5736; TDA5737
VERSION SOT137-1 SOT340-1 SOT340-1
plastic small outline package; 24 leads; body width 7.5 mm plastic shrink small outline package; 24 leads; body width 5.3 mm plastic shrink small outline package; 24 leads; body width 5.3 mm
BLOCK DIAGRAM
band A oscillator tuned cicuit
handbook, full pagewidth
band C oscillator tuned cicuit
band B oscillator tuned cicuit GND
IF outputs
23 (2)
21 (4)
24 22 20 18 (1) (3) (5) (7)
19 (6)
17 (8)
16 (9)
15 (10)
14 (11)
13 (12)
BAND A OSCILLATOR
BAND C OSCILLATOR
BAND B OSCILLATOR
TDA5736T TDA5736M TDA5737M
IF AMPLIFIER
MIXER
MIXER
MIXER
ELECTRONIC BAND SWITCH LOCAL OSCILLATOR AMPLIFIER
BAND A STAGE
BAND C STAGE
BAND B STAGE
DC STABILIZER (17) 8 (16) 9 VP (15) 10 (14) 11 (13) 12
(24) (23) 1 2
(19) 6 band A input
(21) 4
(20) 5
(22) 3
(18) 7
MGE971
IF filter input
band C inputs
RF GND
band B inputs
local oscillator amplifier outputs
band switch input
The numbers in parenthesis represent the TDA5737M.
Fig.1 Block diagram.
1997 Feb 24
3
Philips Semiconductors
Product specification
5 V VHF, hyperband and UHF mixers/oscillators for TV and VCR 3-band tuners
PINNING PIN SYMBOL TDA5736 IFIN1 IFIN2 RFGND CIN1 CIN2 AIN BIN1 BIN2 VP LOOUT1 LOOUT2 BS IFOUT1 IFOUT2 GND BOSCOC1 BOSCOC2 COSCIB1 BOSCIB COSCOC1 AOSCOC COSCOC2 AOSCIB COSCIB2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 TDA5737 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 IF filter input 1 IF filter input 2 ground for RF inputs band C input 1 band C input 2 band A input band B input 1 band B input 2 supply voltage local oscillator amplifier output 1 local oscillator amplifier output 2 band switch input IF amplifier output 1 IF amplifier output 2 ground (0 V) band B oscillator output collector 1 band B oscillator output collector 2 band C oscillator input base 1 band B oscillator input base band C oscillator output collector 1 band A oscillator output collector band C oscillator output collector 2 band A oscillator input base band C oscillator input base 2
TDA5736; TDA5737
DESCRIPTION
1997 Feb 24
4
Philips Semiconductors
Product specification
5 V VHF, hyperband and UHF mixers/oscillators for TV and VCR 3-band tuners
TDA5736; TDA5737
handbook, halfpage
handbook, halfpage
IFIN1 IFIN2 RFGND CIN1 CIN2 AIN
1 2 3 4 5 6
24 COSCIB2 23 AOSCIB 22 COSCOC.