TDA9887HN/V4

更新时间： 2024-01-18 19:49:11

品牌	Logo	应用领域
恩智浦 - NXP		/
页数	文件大小	规格书
58页	296K
描述
I2C-bus controlled multistandard alignment-free IF-PLL demodulator with FM radio

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TDA9887HN/V4 数据手册

Philips Semiconductors

Product speciﬁcation

I²C-bus controlled multistandard alignment-free

IF-PLL demodulator with FM radio

TDA9887

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP. MAX. UNIT

Audio part

V_o(AF)(rms)

AF output voltage (RMS value)

27 kHz FM deviation;

50 µs de-emphasis

430

540

650

THD

total harmonic distortion of audio

signal

FM: 27 kHz FM deviation;

50 µs de-emphasis

−

0.15

0.50

AM: m = 54 %

−

0.5

1.0

B_AF(−3dB)

S/N_W(AF)

−3 dB AF bandwidth

without de-emphasis;

dependent on FM-PLL ﬁlter

100

−

kHz

weighted signal-to-noise ratio of

audio signal

FM: 27 kHz FM deviation;

50 µs de-emphasis;

−

vision carrier unmodulated

AM: m = 54 %

−

α_AM(sup)

AM suppression of

FM demodulator

50 µs de-emphasis;

AM: f = 1 kHz and

m = 54 %; referenced to

27 kHz FM deviation

PSRR_AUD

power supply ripple rejection on

pin AUD

f_ripple= 70 Hz; see Fig.6

for AM

−

for FM

−

V_o(intc)(rms)

IF intercarrier output level

(RMS value)

QSS mode; SC₁; SC₂off

140

180

L standard;

without modulation

intercarrier mode;

PC/SC₁= 20 dB; SC₂off;

note 6

−

Radio part

AFC_stps

AFC control steepness

deﬁnition: ∆I_AFC/∆f_RIF

0.85

1.05

1.25

100

µA/kHz

V_i(FM)(rms)

IF intercarrier input level on

pin FMIN for gain controlled

operation of FM-PLL (RMS value)

radio mode and FM external

mode; see Table 16

−

Reference frequency

f_ref

reference signal frequency

note 7

−

MHz

V_ref(rms)

reference signal voltage

(RMS value)

operation as input terminal 80

−

400

Notes

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

2. For applications without I²C-bus, the time constant (R × C) at the supply must be >1.2 µs (e.g. 1 Ω and 2.2 µF).

3. Condition: luminance range (5 steps) from 0 % to 100 %.

4. AC load: C_L< 20 pF and R_L> 1 kΩ. The sound carrier frequencies (depending on the TV standard) are attenuated

by the integrated sound carrier traps (see Figs 15 to 20; H (s) is the absolute value of transfer function).

5. S/N_Wis the ratio of the black-to-white amplitude to the black level noise voltage (RMS value measured on pin CVBS).

B = 5 MHz weighted in accordance with “CCIR 567”.

2004 Aug 25

1 2 3 456 7 8...58

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