Datasheet > TDA9897_09

TDA9897_09

更新时间： 2022-09-20 14:48:03

品牌	Logo	应用领域
恩智浦 - NXP		/
页数	文件大小	规格书
103页	530K
描述
Multistandard hybrid IF processing

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TDA9897_09 数据手册

TDA9897; TDA9898

NXP Semiconductors

Multistandard hybrid IF processing

2.4 FM radio mode

I Gain controlled wideband Radio IF (RIF) ampliﬁer; AC-coupled

I Buffered RIF ampliﬁer wideband output, gain controlled by internal RIF AGC

I Use of external FM sound BP ﬁlter

I 2nd RIF output, gain controlled by internal RIF AGC or by internal FM carrier AGC for

DSP

I Alignment-free selective FM PLL demodulator with high linearity and low noise

I Precise fully digital AFC detector with 4-bit DAC; AFC bits read-out via I²C-bus

I Port function

I Radio AFC or tuner, RIF or FM AGC voltage monitor output

3. Applications

I Analog and digital TV front-end applications for TV sets, recording applications and

personal computer cards

4. Quick reference data

Table 1.

Quick reference data

V_P= 5 V; T_amb= 25 °C.

Symbol

Parameter

Conditions

Min

4.5

Typ

5.0

Max

5.5

Unit

[1]

V_P

I_P

supply voltage

supply current

ATV QSS; B/G standard;

sound carrier trap on;

sound BP on

175

Analog TV signal processing

Video part

V_i(IF)(RMS)

RMS IF input voltage

lower limit at −1 dB video

100

µV

output signal

G_VIF(cr)

f_VIF

control range VIF gain

VIF frequency

see Table 24

MHz

∆f_VIF(dah)

digital acquisition help VIF

frequency window

related to f_VIF

all standards except M/N

M/N standard

±2.3

±1.8

2.0

MHz

V_{o(video)(p-p)}peak-to-peak video output voltage positive or negative

modulation; normal mode

1.7

2.3

and sound carrier on;

W6[1] = 0; W4[7] = 0;

W7[4] = 0; see Figure 10

[2][3]

G_dif

differential gain

“ITU-T J.63 line 330”

B/G standard

L standard

ϕ_dif

differential phase

“ITU-T J.63 line 330”

B/G standard

deg

L standard

TDA9897_TDA9898_4

Product data sheet

Rev. 04 — 25 May 2009

3 of 103

1 234 5 6 7...103

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