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TDA6403AM/C1

5 V mixers/oscillators and synthesizers for cable TV and VCR 2-band tuners

Philips Electronics 

Philips Semiconductors

5 V mixers/oscillators and synthesizers for

cable TV and VCR 2-band tuners

Product specification

TDA6402; TDA6402A;

TDA6403; TDA6403A

SYMBOL

PARAMETER

CONDITIONS

MIN. TYP. MAX. UNIT

Zi

input impedance (RS + jωLS) RS at fRF = 367.25 MHz; see Fig.10 −

30

−

Ω

RS at fRF = 801.25 MHz; see Fig.10 −

38

−

Ω

LS at fRF = 367.25 MHz; see Fig.10 −

9

−

nH

LS at fRF = 801.25 MHz; see Fig.10 −

6

−

nH

UHF OSCILLATOR

fOSC

oscillator frequency

note 3

413

∆fOSC(V) oscillator frequency shift

∆VCC = 5%; note 4

−

∆fOSC(T) oscillator frequency drift

∆VCC = 10%; note 4

−

∆T = 25 °C; with compensation;

−

note 5

∆fOSC(t) oscillator frequency drift

5 s to 15 min after switching on;

−

note 6

ΦOSC

phase noise, carrier to noise ±100 kHz frequency offset; worst −

sideband

case in the frequency range

RSC

ripple susceptibility of VCC

(peak-to-peak value)

VCC = 5 V (worst case in the

15

frequency range); ripple frequency

500 kHz; note 7

−

10

300

2 000

847

80

−

2 700

MHz

kHz

kHz

kHz

300 1300 kHz

100 −

dBc/Hz

28

−

mV

IF AMPLIFIER

S22

output reflection coefficient

Zo

output impedance (RS + jωLS)

REJECTION AT THE IF OUTPUT

magnitude; see Fig.11

phase; see Fig.11

RS at 43.5 MHz; see Fig.11

LS at 43.5 MHz; see Fig.11

−

−13.1 −

dB

−

2.9

−

deg

−

75

−

Ω

−

6.6

−

nH

INTDIF

level of divider interferences in note 8; worst case: channel C

the IF signal

−

17

−

INTRXTAL crystal oscillator interferences VIF = 100 dBµV; worst case in the 60

−

−

rejection

frequency range; note 9

INTRFREF reference frequency rejection VIF = 100 dBµV; worst case in the 50

−

−

frequency range; fREF = 7.8125 kHz;

note 10

INTCH6 channel 6 beat

VRFpix = VRFsnd = 80 dBµV; note 11 57

−

−

INTCHA-5 channel A-5 beat

VRFpix = 80 dBµV; note 12

60

−

−

dBµV

dBc

dBc

dBc

dBc

Notes

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

2. This is the level of the RF signal (100% amplitude modulated with 11.89 kHz) that causes a 750 Hz frequency

deviation on the oscillator signal; it produces sidebands 30 dB below the level of the oscillator signal.

3. Limits are related to the tank circuits used in Fig.19; frequency bands may be adjusted by the choice of external

components.

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

VCC = 5 to 4.75 V (4.5 V) or from VCC = 5 to 5.25 V (5.5 V). The oscillator is free running during this measurement.

2000 Jan 24

19

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