TDA8296 datasheet(5/87 Pages) NXP

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TDA8296

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Product data sheet

Rev. 1 — 3 March 2011

5 of 87

NXP Semiconductors

TDA8296

Digital global standard low IF demodulator for analog TV and FM radio

[1]

The pull-in range can be doubled to

±1660 kHz by I2C-bus register like described in Table 16. Then the AFC read-out has 256 steps.

[2]

To set audio gain to +6 dB for internal sound demodulation, register 22h has to be programmed to 08h.

Ordering information

THD

total harmonic distortion

FM; for 50 kHz deviation before

pre-emphasis (25 kHz for M standard)

0.15

0.3

AM; m = 80 %

0.5

BAF(−3dB)

−3 dB AF bandwidth

kHz

(S/N)w(AF)

AF weighted

signal-to-noise ratio

via internal mono sound demodulator;

“ITU-R BS.468-4”; FM mode related to

27 kHz deviation before pre-emphasis;

10 % residual PC; SC1; color bar picture

via internal mono sound demodulator;

(audio gain +6 dB) “ITU-R BS.468-4”;

AM; m = 54 %; 3 % residual PC; SC1;

color bar picture

[2] 40

Table 1.

Quick reference data …continued

Power supplies 3.3 V, 1.2 V; Tamb = 25 °C; PC/SC1 for L and M = 10 dB, all others 13 dB; nominal residual picture carrier of

3 % for L/L’ , 10 % for M, 10 % for B/G, 12.5 % for D/K, 20 % for I; FM/AM modulation = 54 %, 1 kHz modulation frequency;

measured in application PCB (see Figure 22 and Figure 23) with 16 MHz crystal frequency, terminated with 75

Ω (CVBS) and

1 k

Ω (SSIF/audio). Operation mode set via easy programming (Section 9.3.1), otherwise stated. Low IF input signal at -3dB

full scale, input frequencies as defined under row header IF input.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

Table 2.

Ordering information

Type number

Package

Name

Description

Version

TDA8296HN

HVQFN40

plastic thermal enhanced very thin quad flat package; no leads;

40 terminals; body 6

× 6 × 0.85 mm

SOT618-1

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