9 V VHF hyperband and UHF
mixer/oscillator for TV and VCR
3-band tuners
Product specification
Supersedes data of 1995 August 01
File under Integrated Circuits, IC02
1996 Dec 02
Philips SemiconductorsProduct specification
9 V VHF hyperband and UHF
mixer/oscillator for TV and VCR 3-band
TDA5636B; TDA5637B
FEATURES
• Balanced mixer with a common emitter input for band A
(single input)
• 2-pin oscillator for bands A and B
• Balanced mixer with a common base input for bands B
and C (balanced input)
• 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
• Pin-to-pin compatible with TDA5636; TDA5637 family
(same function with asymmetrical IF output).
APPLICATIONS
• 3-band all channel TV and VCR tuners
• Any standard.
GENERAL DESCRIPTION
The TDA5636B and TDA5637B 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 9 V and are
available in a very small package.
The 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
• 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.
These circuits belong to the TDA5636/TDA5737 family
which has exactly the same function with an IF amplifier
having an asymmetrical IF output to drive a 75 Ω load. It is
possible to build tuners with either an asymmetrical or a
symmetrical IF output with one main tuner lay-out.
1996 Dec 022
Philips SemiconductorsProduct specification
9 V VHF hyperband and UHF mixer/oscillator
TDA5636B; TDA5637B
for TV and VCR 3-band tuners
QUICK REFERENCE DATA
SYMBOLPARAMETERCONDITIONSMIN.TYP.MAX.UNIT
V
P
I
P
f
RF
G
v
NFnoise figureband A−7.5−dB
V
o
supply voltage−9.0−V
supply currentband A−43−mA
band B−39−mA
band C−42−mA
frequency rangeRF input; band A; note 145−180MHz
RF input; band B; note 1160−470MHz
RF input; band C; note 1430−860MHz
voltage gainband A−25−dB
band B−36−dB
band C−36−dB
band B−6−dB
band C−7−dB
output voltage to get 1% cross
modulation in channel
band A−121−dBµV
band B−120−dBµV
band C−119−dBµV
Note
1. The limits are related to the tank circuits used in Fig.17 and the intermediate frequency. Frequency bands may be
plastic small outline package; 24 leads; body width 7.5 mm
plastic shrink small outline package; 24 leads; body width 5.3 mm
plastic small outline package; 24 leads; body width 7.5 mm
plastic shrink small outline package; 24 leads; body width 5.3 mm
PACKAGE
SOT137-1
SOT340-1
SOT137-1
SOT340-1
Note
1. The TDA5636BT is available on request.
1996 Dec 023
Philips SemiconductorsProduct specification
9 V VHF hyperband and UHF
mixer/oscillator for TV and VCR 3-band
TDA5636B; TDA5637B
IF outputs
input
band switch
GND2
tuned circuit
band B oscillator
tuned circuit
band B oscillator
tuned circuit
band C oscillator
band C
oscillator
tuned circuit
13
(12)
(11)
(10)
(9)
(8)
(6)
(7)
(5)
(4)
(2)
IF
AMPLIFIER
ELECTRONIC
BAND SWITCH
BAND B
OSCILLATOR
BAND C
OSCILLATOR
TDA5636B
TDA5637B
MIXERMIXERMIXER
LOCAL
AMPLIFIER
OSCILLATOR
DC
STABILIZER
STAGE
BAND B
STAGE
BAND C
14
15
16
17
19
18
20
21
23
MGC504
12
(13)
11
(14)
local oscillator
10
(15)
9
(16)
8
(17)
7
(18)
5
(20)
4
(21)
3
(22)
2
(23)
1
(24)
amplifier output
GND1
mixers output
P
band B input
RF
GND
band C input
handbook, full pagewidth
Fig.1 Block diagram.
tuned circuit
band C oscillator
22
(3)
tuned circuit
band A oscillator
(1)
BAND A
OSCILLATOR
24
tuned circuit
band A oscillator
BLOCK DIAGRAM
1996 Dec 024
STAGE
BAND A
6
(19)
band A inputV
The numbers given in parenthesis represent the TDA5637B.
The TDA5636B and TDA5637B are pin compatible with the TDA5636 and TDA5637 respectively.
Philips SemiconductorsProduct specification
9 V VHF hyperband and UHF mixer/oscillator
TDA5636B; TDA5637B
for TV and VCR 3-band tuners
PINNING
SYMBOL
CIN1124band C input 1
CIN2223band C input 2
RFGND322ground for RF inputs
BIN1421band B input 1
BIN2520band B input 2
AIN619band A input
V
P
MIXOUT1817mixers output 1
MIXOUT2916mixers output 2
GND11015ground 1 (0 V)
LOOUT11114local oscillator amplifier output 1
LOOUT21213local oscillator amplifier output 2
IFOUT11312IF amplifier output 1
IFOUT21411IF amplifier output 2
BS1510electronic band switch input
GND2169ground 2 (0 V)
BOSCOC178band B oscillator output collector
COSCIB1187band C oscillator input base 1
BOSCIB196band B oscillator input base
COSCOC1205band C oscillator output collector 1
COSCOC2214band C oscillator output collector 2
AOSCOC223band A oscillator output collector
COSCIB2232band C oscillator input base 2
AOSCIB241band A oscillator input base
TDA5636BTDA5637B
PIN
DESCRIPTION
718supply voltage
1996 Dec 025
Philips SemiconductorsProduct specification
9 V VHF hyperband and UHF mixer/oscillator
for TV and VCR 3-band tuners
In accordance with the Absolute Maximum Rating System (IEC 134).
SYMBOLPARAMETERMIN.MAX.UNIT
V
P
V
SW
I
O
t
sc(max)
T
stg
T
amb
T
j
HANDLING
Human Body Model:
• For TDA5636B GND (10) (16), RFGND (3), and V
• For TDA5637B GND (9) (15), RFGND (22), and VP(18) are separate.
All pins withstand 2000 V in accordance with the
category B (2000 V); R = 1500 Ω; C = 100 pF.
supply voltage−0.3+10.5V
switching voltage0+10.5V
output current of each pin to ground−−10mA
maximum short-circuit time (all pins)−10s
IC storage temperature−55+150°C
operating ambient temperature−10+80°C
junction temperature−+150°C
(7) are separate.
P
“UZW-B0/FQ-A302”
specification equivalent to the
“MIL-STD-883C”
Machine Model:
• For TDA5636B GND (10) (16), RFGND (3), and VP(7) are separate.
• For TDA5637B GND (9) (15), RFGND (22), and VP(18) are separate.
All pins withstand 175 V in accordance with the
“UZW-B0/FQ-A302”
specification (date of issue: Nov 6th, 1990); R = 0 Ω;
C = 200 pF.
THERMAL CHARACTERISTICS
SYMBOLPARAMETERVALUEUNIT
R
th j-a
thermal resistance from junction to ambient in free air
SSOP24120K/W
SO2475K/W
1996 Dec 027
Philips SemiconductorsProduct specification
9 V VHF hyperband and UHF mixer/oscillator
TDA5636B; TDA5637B
for TV and VCR 3-band tuners
CHARACTERISTICS
=9V; T
V
P
SYMBOLPARAMETERCONDITIONSMIN.TYP.MAX.UNIT
Supply
V
P
I
P
V
SW
I
SW
Band A mixer (including IF amplifier)
f
RF
G
v
NFnoise figuref
V
o
V
i
g
os
Y
i
C
i
Band A oscillator
f
OSC
f
shift
f
drift
=25°C; measured in circuit of Fig.17; unless otherwise specified.