TDA9898HLSLASHV3 datasheet(6/103 Pages) NXP

6 / 103 page

TDA9897_TDA9898_4

Product data sheet

Rev. 04 — 25 May 2009

6 of 103

NXP Semiconductors

TDA9897; TDA9898

Multistandard hybrid IF processing

[1]

Values of video and sound parameters can be decreased at VP = 4.5 V.

[2]

AC load; CL < 20 pF and RL >1kΩ. The sound carrier frequencies (depending on TV standard) are attenuated by the integrated sound

carrier traps.

[3]

Condition: luminance range (5 steps) from 0 % to 100 %. Measurement value is based on 4 of 5 steps.

[4]

The sound carrier trap can be bypassed by setting the I2C-bus bit W2[0] to logic 0; see Table 23. In this way the full composite video

spectrum appears at pin CVBS. The video amplitude is reduced to 1.1 V (p-p).

[5]

Measurement using 200 kHz high-pass ﬁlter, 5 MHz low-pass ﬁlter and subcarrier notch ﬁlter (

“ITU-T J.64”).

[6]

To match the AFC output signal to different tuning systems a current output is provided. The test circuit is given in Figure 19. The

AFC steepness can be changed by resistors R1 and R2.

[7]

With single-ended load for fIF < 45 MHz RL ≥ 1kΩ and CL ≤ 5 pF to ground and for fIF = 45 MHz to 60 MHz RL =1kΩ and CL ≤ 3 pF to

ground.

[8]

This parameter is not tested during production and is only given as application information.

[9]

Noise level is measured without input signal but AGC adjusted corresponding to the given input level.

[10] Set with AGC nominal output voltage as reference. For C/N measurement switch input signal off.

[11] The tolerance of the reference frequency determines the accuracy of VIF AFC, RIF AFC, FM demodulator center frequency, maximum

FM deviation, sound trap frequency, LIF band-pass cut-off frequency, as well as the accuracy of the synthesizer.

n(synth)

synthesizer phase noise

with 4 MHz crystal oscillator

reference; fsynth = 31 MHz;

fIF =36MHz

at 1 kHz

[8] 89

dBc/Hz

at 10 kHz

[8] 89

dBc/Hz

at 100 kHz

[8] 98

102

dBc/Hz

at 1.4 MHz

[8] 115

119

dBc/Hz

αripple(pb)LIF low IF pass-band ripple

6 MHz bandwidth

2.7

7 MHz bandwidth

2.7

8 MHz bandwidth

2.7

αstpb

stop-band attenuation

8 MHz band; f = 15.75 MHz

αimage

image rejection

−10 MHz to 0 MHz; BP on

C/N

carrier-to-noise ratio

at fo = 4.9 MHz;

Vi(IF) = 10 mV (RMS);

see Figure 37

[8][9][10] 112

118

dBc/Hz

Reference frequency input from external source

fref

reference frequency

W7[7] = 0

[11] -4

-MHz

Vref(RMS)

RMS reference voltage

W7[7] = 0; see Figure 34

and Figure 46

150

500

Table 1.

Quick reference data …continued

VP =5V; Tamb =25 °C.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

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