TDA9885; TDA9886
I
2
C-bus controlled single and multistandard alignment-free
IF-PLL demodulators
Rev. 03 — 16 December 2008
Product data sheet
1. General description
The TDA9885 is an alignment-free multistandard (PAL and NTSC) vision and sound
IF signal Phase-Locked Loop (PLL) demodulator for negative modulation only and
FM processing.
The TDA9886 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.
2. Features
I
5 V supply voltage
I
Gain controlled wideband Vision Intermediate Frequency (VIF) amplifier, AC-coupled
I
Multistandard true synchronous demodulation with active carrier regeneration: very
linear demodulation, good intermodulation figures, reduced harmonics, and excellent
pulse response
I
Gated phase detector for L and L-accent standard
I
Fully integrated VIF Voltage-Controlled Oscillator (VCO), alignment-free, frequencies
switchable for all negative and positive modulated standards via I
2
C-bus
I
Digital acquisition help, VIF frequencies of 33.4 MHz, 33.9 MHz, 38.0 MHz, 38.9 MHz,
45.75 MHz and 58.75 MHz
I
4 MHz reference frequency input: signal from PLL tuning system or operating as
crystal oscillator
I
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
I
Precise fully digital Automatic Frequency Control (AFC) detector with 4-bit
digital-to-analog converter, AFC bits readable via I
2
C-bus
I
TakeOver Point (TOP) adjustable via I
2
C-bus or alternatively with potentiometer
I
Fully integrated sound carrier trap for 4.5 MHz, 5.5 MHz, 6.0 MHz and 6.5 MHz,
controlled by FM-PLL oscillator
I
Sound IF (SIF) input for single reference Quasi Split Sound (QSS) mode, PLL
controlled
I
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
I
AM demodulator without extra reference circuit
I
Alignment-free selective FM-PLL demodulator with high linearity and low noise
NXP Semiconductors
TDA9885; TDA9886
I
2
C-bus controlled multistandard alignment-free IF-PLL demodulators
I
Four selectable I
2
C-bus addresses
I
I
2
C-bus control for all functions
I
I
2
C-bus transceiver with pin programmable Module ADdress (MAD)
3. Applications
I
TV, VTR, PC, and STB applications
4. Quick reference data
Table 1.
Symbol
V
P
I
P
τ
P
Video part
V
i(VIF)(rms)
G
VIF(cr)
f
VIF
VIF input voltage
sensitivity (RMS value)
control range VIF gain
vision carrier operating
frequencies
−1
dB video at output
see
Figure 9
see
Table 13
-
60
-
-
-
-
-
-
∆f
VIF
V
o(v)(p-p)
VIF frequency window of
digital acquisition help
video output voltage
(peak-to-peak value)
related to f
VIF
; see
Figure 12
see
Figure 7
normal mode (sound carrier trap active)
and sound carrier on
trap bypass mode and sound carrier off
G
dif
differential gain
[2]
[3]
Quick reference data
Parameter
supply voltage
supply current
time constant (R
×
C) for
network at pin V
P
for applications without I
2
C-bus
Conditions
[1]
Min
4.5
52
1.2
Typ
5.0
63
-
Max
5.5
70
-
Unit
V
mA
µs
60
66
33.4
33.9
38.0
38.9
45.75
58.75
±2.3
100
-
-
-
-
-
-
-
-
µV
dB
MHz
MHz
MHz
MHz
MHz
MHz
MHz
-
1.7
0.95
-
-
-
[2]
2.0
1.10
-
-
2
6
4.05
5.00
5.50
5.95
36
36
2.3
1.25
5
7
4
-
-
-
-
-
-
-
V
V
%
%
deg
MHz
MHz
MHz
MHz
MHz
dB
dB
“ITU-T J.63 line 330”
B/G standard
L standard
ϕ
dif
B
v(−1dB)
differential phase
−1
dB video bandwidth
“ITU-T J.63 line 330”
trap bypass mode and sound carrier off;
AC load: C
L
< 20 pF, R
L
> 1 kΩ
f
trap
= 4.5 MHz
f
trap
= 5.5 MHz
f
trap
= 6.0 MHz
f
trap
= 6.5 MHz
f = 4.5 MHz
f = 5.5 MHz
5
3.95
4.90
5.40
5.50
30
30
B
v(−3dB)(trap)
−3
dB video bandwidth
including sound carrier
trap
[4]
[4]
[4]
[4]
α
SC1
attenuation at first sound
carrier
TDA9885_TDA9886_3
© NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 03 — 16 December 2008
2 of 56
NXP Semiconductors
TDA9885; TDA9886
I
2
C-bus controlled multistandard alignment-free IF-PLL demodulators
Table 1.
Symbol
S/N
W
Quick reference data
…continued
Parameter
weighted signal-to-noise
ratio
Conditions
unified weighting filter (“ITU-T
J.61”);
see
Figure 13
f
ripple
= 70 Hz; video signal; grey level;
positive and negative modulation;
see
Figure 8
definition:
∆I
AFC
/
∆f
VIF
27 kHz FM deviation; 50
µs
de-emphasis
25 kHz FM deviation; 50
µs
de-emphasis
54 % AM modulation
without de-emphasis; measured with
FM-PLL filter of
Figure 26
black picture; see
Figure 21
in accordance with
“ITU-R BS.468-4”
referenced to 27 kHz FM deviation;
50
µs
de-emphasis; AM: f = 1 kHz;
m = 54 %
see
Figure 8
f
ripple
= 70 Hz; see
Figure 8
[5]
Min
56
20
Typ
59
25
Max
-
-
Unit
dB
dB
PSRR
CVBS
power supply ripple
rejection on pin CVBS
AFC
stps
Audio part
V
o(AF)(rms)
THD
B
AF(−3dB)
S/N
W(AF)
α
AM(sup)
AF output voltage
(RMS value)
total harmonic distortion
−3
dB AF bandwidth
weighted signal-to-noise
ratio of audio signal
AM suppression of
FM demodulator
power supply ripple
rejection
power supply ripple
rejection
AFC control steepness
0.85
430
-
-
80
50
45
40
1.05
540
0.15
0.5
100
56
50
46
1.25
650
0.50
1.0
-
-
-
-
µA/kHz
mV
%
%
kHz
dB
dB
dB
PSRR
AM
PSRR
FM
V
o(intc)(rms)
20
14
90
90
[6]
26
20
140
140
75
-
-
180
180
-
dB
dB
mV
mV
mV
IF intercarrier output level QSS mode; SC
1
; SC
2
off
(RMS value)
L standard; without modulation
intercarrier mode; PC / SC
1
= 20 dB;
SC
2
off
-
Reference frequency input; pin REF
f
ref
V
ref(rms)
reference signal
frequency
reference signal voltage
(RMS value)
operation as input terminal
[7]
-
80
4
-
-
400
MHz
mV
[1]
[2]
[3]
[4]
[5]
Values of video and sound parameters can be decreased at V
P
= 4.5 V.
The sound carrier trap can be bypassed by switching the I
2
C-bus. In this way the full composite video spectrum appears at pin CVBS.
The amplitude is 1.1 V (p-p).
Condition: luminance range (5 steps) from 0 % to 100 %.
AC load; C
L
< 20 pF and R
L
> 1 kΩ. The sound carrier frequencies (depending on TV standard) are attenuated by the integrated sound
carrier traps (see
Figure 15
to
Figure 20;
H
(s) is the absolute value of transfer function).
S/N is the ratio of black-to-white amplitude to the noise voltage (RMS value measured on pin CVBS and tested at video black level,
‘quiet line’). Noise analyzer settings: B = 5 MHz, 200 kHz high-pass and sound carrier trap on. In case of S/N
W
weighted in accordance
with
“ITU-T J.61”.
Measurements taken for B/G standard.
The intercarrier output signal at pin SIOMAD can be calculated by the following formula taking into account the internal video signal with
1.1 V (p-p) as a reference:
V
o(intc)(rms)
=
1.1
×
---------
×
10 V
and
r
=
-----
×
---------------
(
dB
)
+
6 dB
±
3 dB
, where:
---------
is the
-
-
-
-
20
V
i
(
PC
)
2 2
2 2
[6]
1
r
1
V
i
(
SC
)
1
correction term for RMS value,
---------------
(
dB
)
is the sound-to-picture carrier ratio at pins VIF1 and VIF2 in dB, 6 dB is the correction term
-
of internal circuitry and
±3
dB is the tolerance of video output and intercarrier output V
o(intc)(rms)
.
TDA9885_TDA9886_3
© NXP B.V. 2008. All rights reserved.
V
i
(
SC
)
V
i
(
PC
)
Product data sheet
Rev. 03 — 16 December 2008
3 of 56
NXP Semiconductors
TDA9885; TDA9886
I
2
C-bus controlled multistandard alignment-free IF-PLL demodulators
[7]
Pin REF is able to operate as a 1-pin crystal oscillator input as well as an external reference signal input, e.g. from the tuning system.
5. Ordering information
Table 2.
Ordering information
Package
Name
TDA9885T/V3
TDA9885TS/V3
TDA9885HN/V3
TDA9886T/V4
TDA9886TS/V4
TDA9886HN/V4
TDA9885T/V5
TDA9885TS/V5
TDA9885HN/V5
TDA9886T/V5
TDA9886TS/V5
TDA9886HN/V5
SO24
SSOP24
HVQFN32
SO24
SSOP24
HVQFN32
SO24
SSOP24
HVQFN32
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
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
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
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
SOT137-1
SOT340-1
SOT617-3
SOT137-1
SOT340-1
SOT617-3
SOT137-1
SOT340-1
SOT617-3
Type number
TDA9885_TDA9886_3
© NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 03 — 16 December 2008
4 of 56
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Product data sheet
Rev. 03 — 16 December 2008
© NXP B.V. 2008. All rights reserved.
TDA9885_TDA9886_3
6. Block diagram
NXP Semiconductors
CVAGC(pos)
VIF-PLL
filter
VAGC
(1)
16 (17)
CBL
external reference signal
or 4 MHz crystal
TOP
9 (8)
TAGC
14 (15)
CAGC(neg)
VPLL
19 (21)
REF
15 (16)
AFC
21 (23)
TUNER AGC
VIF AGC
RC VCO
DIGITAL VCO CONTROL
AFC DETECTOR
VIF2
VIF1
2 (31)
1 (30)
VIF PLL
I
2
C-bus controlled multistandard alignment-free IF-PLL demodulators
SOUND CARRIER
TRAPS
4.5 MHz to 6.5 MHz
(18) 17
CVBS
video output: 2 V (p-p)
[1.1 V (p-p) without trap]
TDA9885
TDA9886
(7) 8
SIF2
SIF1
24 (27)
23 (26)
SINGLE REFERENCE QSS MIXER
INTERCARRIER MIXER
AND AM DEMODULATOR
MAD
(4) 6
SUPPLY
SIF AGC
CAGC
AUD
DEEM
AUDIO PROCESSING
AND SWITCHES
audio output
(3) 5
de-emphasis
network
AFD
CAF
OUTPUT
PORTS
I
2
C-BUS TRANSCEIVER
NARROWBAND
FM-PLL DEMODULATOR
TDA9885; TDA9886
20 (22)
V
P
18 (20)
AGND
(6, 12, 13, 14, 17,
19, 25, 28, 29, 32)
13
n.c.
3 (1)
OP1
22 (24) 11 (10)
OP2
SCL
10 (9)
SDA
7 (5)
DGND
12 (11)
SIOMAD
4 (2)
FMPLL
008aaa174
sound intercarrier output
and MAD select
FM-PLL
filter
Pin numbers for TDA9885HN and TDA9886HN in parentheses.
(1) Not connected for TDA9885
5 of 56
Fig 1.
Block diagram of TDA9885; TDA9886
嵌入式系统
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