Philips Semiconductors
Product specification
I
2
C-bus controlled multistandard alignment-free
IF-PLL demodulator with FM radio
CONTENTS
1
2
3
4
5
6
7
8
8.1
8.2
8.3
8.4
8.5
8.6
8.7
8.8
8.9
8.10
8.11
8.12
8.13
8.14
8.15
8.16
8.17
9
9.1
9.1.1
9.1.2
9.2
9.2.1
9.2.2
9.2.3
9.2.4
FEATURES
GENERAL DESCRIPTION
APPLICATIONS
ORDERING INFORMATION
QUICK REFERENCE DATA
BLOCK DIAGRAM
PINNING
FUNCTIONAL DESCRIPTION
VIF amplifier
Tuner AGC and VIF-AGC
VIF-AGC detector
FPLL detector
VCO and divider
AFC and digital acquisition help
Video demodulator and amplifier
Sound carrier trap
SIF amplifier
SIF-AGC detector
Single reference QSS mixer
AM demodulator
FM demodulator and acquisition help
Audio amplifier and mute time constant
Radio mode
Internal voltage stabilizer
I
2
C-bus transceiver and module address
I
2
C-BUS CONTROL
Read format
Slave address
Data byte
Write format
Subaddress
Data byte for switching mode
Data byte for adjust mode
Data byte for data mode
10
11
12
13
14
15
15.1
15.2
15.3
15.4
15.5
16
17
18
19
LIMITING VALUES
TDA9887
THERMAL CHARACTERISTICS
CHARACTERISTICS
TEST AND APPLICATION INFORMATION
PACKAGE OUTLINES
SOLDERING
Introduction to soldering surface mount
packages
Reflow soldering
Wave soldering
Manual soldering
Suitability of surface mount IC packages for
wave and reflow soldering methods
DATA SHEET STATUS
DEFINITIONS
DISCLAIMERS
PURCHASE OF PHILIPS I
2
C COMPONENTS
2004 Aug 25
2
Philips Semiconductors
Product specification
I
2
C-bus controlled multistandard alignment-free
IF-PLL demodulator with FM radio
1
FEATURES
TDA9887
•
5 V supply voltage
•
Gain controlled wide-band Vision Intermediate
Frequency (VIF) amplifier, AC-coupled
•
Multistandard true synchronous demodulation with
active carrier regeneration: very linear demodulation,
good intermodulation figures, reduced harmonics, and
excellent pulse response
•
Gated phase detector for L and L-accent standard
•
Fully integrated VIF Voltage Controlled Oscillator
(VCO), alignment-free, frequencies switchable for all
negative and positive modulated standards via I
2
C-bus
•
Digital acquisition help, VIF frequencies of 33.4, 33.9,
38.0, 38.9, 45.75, and 58.75 MHz
•
4 MHz reference frequency input: signal from
Phase-Locked Loop (PLL) tuning system or operating
as crystal oscillator
•
VIF Automatic Gain Control (AGC) detector for gain
control, operating as peak sync detector for negative
modulated signals and as a peak white detector for
positive modulated signals
•
VIF-AGC monitor output at pin OP2
•
External VIF-AGC setting via pin OP1
•
Precise fully digital Automatic Frequency Control (AFC)
detector with 4-bit digital-to-analog converter, AFC bits
readable via I
2
C-bus
•
TakeOver Point (TOP) adjustable via I
2
C-bus or
alternatively with potentiometer
•
Fully integrated sound carrier trap for 4.5, 5.5,
6.0, and 6.5 MHz, controlled by FM-PLL oscillator
•
Sound IF (SIF) input for single reference Quasi Split
Sound (QSS) mode, PLL controlled
•
SIF-AGC for gain controlled SIF amplifier, single
reference QSS mixer able to operate in high
performance single reference QSS mode and in
intercarrier mode, switchable via I
2
C-bus
4
ORDERING INFORMATION
PACKAGE
TYPE NUMBER
NAME
TDA9887T/V4
TDA9887TS/V4
TDA9887HN/V4
SO24
SSOP24
HVQFN32
DESCRIPTION
plastic small outline package; 24 leads; body width 7.5 mm
plastic shrink small outline package; 24 leads; body width 5.3 mm
plastic thermal enhanced very thin quad flat package; no leads;
32 terminals; body 5
×
5
×
0.85 mm
VERSION
SOT137-1
SOT340-1
SOT617-3
•
AM demodulator without extra reference circuit
•
Alignment-free selective FM-PLL demodulator with high
linearity and low noise
•
I
2
C-bus control for all functions
•
I
2
C-bus transceiver with pin programmable Module
Address (MAD)
•
Four selectable I
2
C-bus addresses
•
SIF and FM-AGC for radio (optional)
•
Radio IF (RIF) input using the sound IF SAW input for
converting to 10.7 MHz, input frequencies are 41.3 MHz
for NTSC (M/N standard) applications and 33.3 MHz for
other applications
•
Alignment-free FM radio demodulation at 10.7 MHz
•
Radio AFC
•
External FM input and demodulation.
2
GENERAL DESCRIPTION
The TDA9887 is an alignment-free multistandard
(PAL, SECAM and NTSC) vision and sound IF signal PLL
demodulator for positive and negative modulation,
including sound AM and FM processing. A special function
is implemented for the demodulation of FM radio signals
(f
RIF
= 10.7 MHz).
3
APPLICATIONS
•
TV, VTR, PC, and STB applications.
2004 Aug 25
3
Philips Semiconductors
Product specification
I
2
C-bus controlled multistandard alignment-free
IF-PLL demodulator with FM radio
5
QUICK REFERENCE DATA
SYMBOL
V
P
I
P
Video part
V
i(VIF)(rms)
G
VIF(cr)
f
VIF
VIF input voltage sensitivity
(RMS value)
VIF gain control range
vision carrier operating frequencies see Table 17
−1
dB video at output
−
60
−
−
−
−
−
−
∆f
VIF
V
o(v)(p-p)
VIF frequency window of digital
acquisition help
video signal output voltage
(peak-to-peak value)
related to f
VIF
; see Fig.11
see Fig.5
normal mode
trap bypass mode
G
dif
differential gain
“CCIR 330”; note 3
B/G standard
L standard
ϕ
dif
B
v(−1dB)
B
v(−3dB)(trap)
differential phase
−1
dB video bandwidth
−3
dB video bandwidth including
sound carrier trap
“CCIR 330”
trap bypass mode; AC load;
C
L
< 20 pF; R
L
> 1 kΩ
note 4
f
trap
= 4.5 MHz
f
trap
= 5.5 MHz
f
trap
= 6.0 MHz
f
trap
= 6.5 MHz
α
SC1
S/N
W
trap attenuation at first sound
carrier
weighted signal-to-noise ratio
M/N standard
B/G standard
3.95
4.90
5.40
5.50
30
30
4.05
5.00
5.50
5.95
36
36
59
−
−
−
5
−
−
2
6
1.7
0.95
2.0
1.10
−
60
66
33.4
33.9
38.0
38.9
45.75
58.75
±2.3
PARAMETER
supply voltage
supply current
CONDITIONS
notes 1 and 2
MIN.
4.5
52
TYP.
5.0
63
TDA9887
MAX.
5.5
70
UNIT
V
mA
µV
dB
MHz
MHz
MHz
MHz
MHz
MHz
MHz
100
−
−
−
−
−
−
−
−
2.3
1.25
5
7
4
−
V
V
%
%
deg
MHz
−
−
−
−
−
−
−
MHz
MHz
MHz
MHz
dB
dB
dB
weighted in accordance with 56
“CCIR 567”;
see Fig.13;
note 5
f
ripple
= 70 Hz; video signal;
grey level; positive and
negative modulation;
see Fig.6
definition:
∆I
AFC
/∆f
VIF
20
PSRR
CVBS
power supply ripple rejection at
pin CVBS
25
−
dB
AFC
stps
AFC control steepness
0.85
1.05
1.25
µA/kHz
2004 Aug 25
4
Philips Semiconductors
Product specification
I
2
C-bus controlled multistandard alignment-free
IF-PLL demodulator with FM radio
SYMBOL
Audio part
V
o(AF)(rms)
THD
AF output voltage (RMS value)
total harmonic distortion of audio
signal
−3
dB AF bandwidth
weighted signal-to-noise ratio of
audio signal
27 kHz FM deviation;
50
µs
de-emphasis
FM: 27 kHz FM deviation;
50
µs
de-emphasis
AM: m = 54 %
B
AF(−3dB)
S/N
W(AF)
without de-emphasis;
dependent on FM-PLL filter
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
f
ripple
= 70 Hz; see Fig.6
for AM
for FM
V
o(intc)(rms)
IF intercarrier output level
(RMS value)
QSS mode; SC
1
; SC
2
off
L standard;
without modulation
intercarrier mode;
PC/SC
1
= 20 dB; SC
2
off;
note 6
Radio part
AFC
stps
V
i(FM)(rms)
AFC control steepness
IF intercarrier input level on
pin FMIN for gain controlled
operation of FM-PLL (RMS value)
definition:
∆I
AFC
/∆f
RIF
0.85
1.05
−
20
14
90
90
−
26
20
140
140
75
430
−
−
80
52
540
0.15
0.5
100
56
PARAMETER
CONDITIONS
MIN.
TYP.
TDA9887
MAX.
UNIT
650
0.50
1.0
−
−
mV
%
%
kHz
dB
45
40
50
46
−
−
dB
dB
PSRR
AUD
power supply ripple rejection on
pin AUD
−
−
180
180
−
dB
dB
mV
mV
mV
1.25
100
µA/kHz
mV
radio mode and FM external 1
mode; see Table 16
Reference frequency
f
ref
V
ref(rms)
Notes
1. Values of video and sound parameters can be decreased at V
P
= 4.5 V.
2. For applications without I
2
C-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
W
is 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”.
reference signal frequency
reference signal voltage
(RMS value)
note 7
operation as input terminal
−
80
4
−
−
400
MHz
mV
2004 Aug 25
5
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
