Philips tda5634t DATASHEETS

INTEGRATED CIRCUITS

DATA SH EET

TDA5634T

9 V UHF mixer/oscillator for TV and
VCR tuners

Product specification
Supersedes data of 1995 Mar 21
File under Integrated Circuits, IC02

1996 Nov 7

Philips Semiconductors Product specification

9 V UHF mixer/oscillator for TV and VCR

TDA5634T

tuners

FEA TURES

• Balanced mixer with a common base input

• 4-pin oscillator

• 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

• External IF filter between the mixer output and the IF

amplifier input.

APPLICATION

• UHF tuners for TV and VCR

• One band tuners.

QUICK REFERENCE DATA

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

V

P

I

P

f

RF

G

v

NF noise figure not corrected for image − 9 − dB
V

o

supply voltage − 9.0 − V
supply current − 35 − mA
RF frequency RF input; note 1 430 − 860 MHz
voltage gain − 36 − dB

output voltage causing 1% cross
modulation in channel

GENERAL DESCRIPTION

The TDA5634T is an integrated circuit that performs the
UHF mixer/oscillator functions in TV and VCR tuners.
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 tuner.

The tuner development time can be drastically reduced by
using this device.

The frequency band is determined by the external tank
circuit. It can be adapted to various standards.

− 121 − dBµV

Note

1. The limits are related to the tank circuits used in Fig.7 and the intermediate frequency. Frequency bands may be
adjusted by the choice of external components.

ORDERING INFORMATION

TYPE

NUMBER

TDA5634T SO16

NAME DESCRIPTION VERSION

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

PACKAGE

SOT109-1

1996 Nov 7 2

Philips Semiconductors Product specification

9 V UHF mixer/oscillator for TV and VCR
tuners

BLOCK DIAGRAM

handbook, full pagewidth

UHF oscillator inputs

n.c.

UHF oscillator outputs

15 12 13 14

BCBC

UHF OSCILLATOR

MIXER

STABILIZER IF AMPLIFIER

V

P

11 10 916

TDA5634T

IF amplifier outputs

TDA5634T

RF STAGE

123456 78

RF

RF inputs local oscillator

GND

LOCAL

OSCILLATOR

outputs

GND

IF amplifier

inputs

Fig.1 Block diagram.

MBE299

1996 Nov 7 3

Philips Semiconductors Product specification

9 V UHF mixer/oscillator for TV and VCR
tuners

PINNING

SYMBOL PIN DESCRIPTION

CIN1 1 band C input 1
CIN2 2 band C input 2
RFGND 3 ground for RF inputs
LOOUT1 4 local oscillator amplifier output 1
LOOUT2 5 local oscillator amplifier output 2
GND 6 ground (0 V)
IFIN1 7 IF amplifier input 1
IFIN2 8 IF amplifier input 2
IFOUT1 9 IF amplifier output 1
IFOUT2 10 IF amplifier output 2
V

P

COSCIB1 12 UHF oscillator input base 1
COSCOC1 13 UHF oscillator output collector 1
COSCOC2 14 UHF oscillator output collector 2
COSCIB2 15 UHF oscillator input base 2
n.c. 16 not connected

11 supply voltage

handbook, halfpage

CIN1

1
2

CIN2

GND
IFIN1
IFIN2

3
4

TDA5634T

5
6
7
8

RFGND
LOOUT1
LOOUT2

Fig.2 Pin configuration.

MBE298

TDA5634T

n.c

16

COSCIB2

15
14

COSCOC2

13

COSCOC1

12

COSCIB1
V

11

P

10

IFOUT2

9

IFOUT1

LIMITING VALUES

In accordance with the Absolute Maximum Rating System (IEC 134).

SYMBOL PARAMETER MIN. MAX. UNIT

V
I
t
T
T
T

P
O
sc

stg
amb
j

supply voltage −0.3 +10.5 V
output current of each pin referenced to ground −−10 mA
maximum short-circuit time (all pins) − 10 s
IC storage temperature −55 +150 °C
operating ambient temperature −10 +80 °C
junction temperature − +150 °C

HANDLING

Human body model: the IC withstands 2000 V in accordance with the “
the

“MIL-STD-883C category B”

(2000 V);

UZW-BO/FQ-A302”

, specification equivalent to

R = 1500 Ω, C = 100 pF.
Machine model: the IC withstands 200 V except pin 11 (175 V) in accordance with the “

UZW-BO/FQ-B302”

, specification
(date of issue: Nov 6th, 1990);
R=0Ω, C = 200 pF.

THERMAL CHARACTERISTICS

SYMBOL PARAMETER VALUE UNIT

R

th j-a

thermal resistance from junction to ambient in free air 120 K/W

1996 Nov 7 4

Philips Semiconductors Product specification

9 V UHF mixer/oscillator for TV and VCR

TDA5634T

tuners

CHARACTERISTICS

=9V; T

V

P

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

Supply

V

P

I

P

Mixer (including IF amplifier)

f

RF

G

v

NF noise figure (not corrected

V

o

V

i

Z

i

=25°C; measured in circuit of Fig.7; unless otherwise specified.

amb

supply voltage 8.1 9.0 9.9 V
supply current VP= 8.1 to 9.9 V; T

= −10 to +80 °C − 35 45 mA

amb

RF frequency note 1 430 − 860 MHz
voltage gain fRF= 430 MHz; see Fig.3; note 2 33 36 39 dB

= 860 MHz; see Fig.3; note 2 33 36 39 dB

f

RF

= 430 MHz; see Fig.4 − 911dB

f

RF

for image)
output voltage causing 1%

cross modulation in channel
input voltage causing 10 kHz

= 860 MHz; see Fig.4 − 911dB

f

RF

fRF= 430 MHz; see Fig.5 115 118 − dBµV

= 860 MHz; see Fig.5 118 121 − dBµV

f

RF

fRF= 860 MHz; note 3 − 87 − dBµV

pulling in channel
input voltage causing

= 820 MHz; see Fig.6 65 72 − dBµV

f

RF

N+5−1 MHz pulling
input impedance (RS+jLSω)RS at fRF= 430 MHz; see Fig.8; note 4 − 28 −Ω

at fRF= 860 MHz; see Fig.8; note 4 − 33 −Ω

R

S

at fRF= 430 to 860 MHz; see Fig.8;

L

S

− 8 − nH

note 4

IF amplifier

S

11

S

12

S

21

S

22

Z

o

Y

i

input reflection coefficient magnitude; see Fig.10; note 4 −−0.6 − dB

phase; see Fig.10; note 4 −−2.5 − deg

reverse transmission
coefficient

forward transmission
coefficient

magnitude; see Fig.11; note 4 −−56 − dB
phase; see Fig.11; note 4 − 30 − deg
magnitude; note 4 −−9.5 − dB
phase; note 4 − 165 − deg

output reflection coefficient magnitude; see Fig.11; note 4 −−7−dB

phase; see Fig.11; note 4 − 6 − deg

output impedance
(RS+jLSω)

RS; see Fig.11; note 4 − 100 −Ω

; see Fig.11; note 4 − 32 − nH

L

S

input admittance (GP+jCPω)GP; see Fig.10; note 4 − 0.8 − mS

; see Fig.10; note 4 − 2.5 − pF

C

P

1996 Nov 7 5

Philips Semiconductors Product specification

9 V UHF mixer/oscillator for TV and VCR

TDA5634T

tuners

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

LO output; R

Y

o

V

o

SRF spurious signal on LO output

SHD LO signal harmonics with

Band C oscillator

f

OSC

f

shift

f

drift

= 100 Ω

L

output admittance
(GP+jCPω)

f

= 470 MHz; see Fig.9; note 4 − 3 − mS

OSC

− 0.5 − pF

f

= 900 MHz; see Fig.9; note 4 − 3.5 − mS

OSC

− 0.5 − pF

output voltage RL=50Ω; VP= 8.1 to 9.9 V;

T

= −10 to +80 °C

amb

R

=50Ω; note 5 −−−10 dBc

L

83 91 100 dBµV

with respect to LO output
signal

=50Ω −−−10 dBc

R

L

respect to LO signal

oscillator frequency Vt= 0.45 to 28 V; VP= 8.1 to 9.9 V;

T

= −10 to +80 °C; note 6

amb

470 − 900 MHz

frequency shift ∆VP= 10%; note 7 −−400 kHz
frequency drift ∆T=25°C without compensation;

−−2.5 MHz

NP0 capacitors; note 8
∆T=25°C with compensation; note 9 −−800 kHz
5 s to 15 minutes after switch on;

−−600 kHz

without compensation; note 10

Notes

1. The RF frequency range is defined by the oscillator frequency range and the intermediate frequency.

2. The gain is defined as the transducer gain (measured in Fig.7) plus the voltage transformation ratio of L3 to L2

(10 : 2, 15.4 dB including transformer loss).

3. The input level causing 10 kHz frequency detuning at the LO output; f

osc=fRF

+ 33.4 MHz.

4. All S-parameters are referred to a 50 Ω system.

5. Measured with RF input voltage of 97 dBµV at 430 MHz < fRF< 860 MHz.

6. Limits are related to the tank circuits used in Fig.7. Frequency bands may be adjusted by the choice of external

components.

7. The frequency shift is defined as the change in oscillator frequency when the supply voltage varies from

VP= 9 to 8.1 V or from VP= 9 to 9.9 V.

8. The frequency drift is defined as the change in oscillator frequency when the ambient temperature varies from

T

=25°C to 0 °C or from T

amb

=25°Cto50°C. Without compensation, the capacitors C11 to C15 are NP0.

amb

9. The frequency drift is defined as the change in oscillator frequency when the ambient temperature varies from

T

=25°C to 0 °C or from T

amb

=25°Cto50°C. With compensation, the capacitors C11 to C14 are N750 and

amb

C15 is N470.

10. Switch on drift is defined as the change in oscillator frequency between 5 s and 15 min after switch on.

1996 Nov 7 6