Datasheet > TDA9897HN

TDA9897HN

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
恩智浦 - NXP		/
页数	文件大小	规格书
103页	512K
描述
Multistandard hybrid IF processing

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TDA9897HN 数据手册

TDA9897; TDA9898

NXP Semiconductors

Multistandard hybrid IF processing

2.4 Dual mode

I Fully performed DTV processing and additional ATV video signal processing in

parallel, but with reduced performance, for very fast channel scan

I VIF AGC voltage monitor output or port function

I VIF AFC current monitor output or TAGC voltage output

2.5 FM radio mode

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

I Buffered RIF ampliﬁer wide-band output, gain controlled by internal RIF AGC

I Fully integrated BP ﬁlter for 2nd RIF at 4.5 MHz, 5.5 MHz, 6.0 MHz, 6.5 MHz or

10.7 MHz

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 current 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

190

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 25

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

MHz

V_{o(video)(p-p)}peak-to-peak video output voltage see Figure 10

[2]

[3]

positive or negative

modulation; normal mode

and sound carrier on

1.7

2.0

1.1

2.3

trap bypass mode and

sound carrier off

TDA9897_TDA9898_3

Product data sheet

Rev. 03 — 11 January 2008

3 of 103

1 234 5 6 7...103

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