TDA9885_TDA9886_3 © NXP B.V. 2008. All rights reserved.
Product data sheet Rev. 03 — 16 December 2008 33 of 56
NXP Semiconductors
TDA9885; TDA9886
I
2
C-bus controlled multistandard alignment-free IF-PLL demodulators
[1] Values of video and sound parameters can be decreased at V
P
= 4.5 V.
[2] Level headroom for input level jumps during gain control setting.
[3] This parameter is not tested during the production and is only given as application information for designing the receiver circuit.
[4] Loop bandwidth BL = 70 kHz (damping factor d = 1.9; calculated with sync level within gain control range). Calculation of the VIF-PLL
filter can be done by use of the following formula:
, valid for d ≥ 1.2
,
where:
K
O
is the VCO steepness or ; K
D
is the phase detector steepness ;
R is the loop resistor (Ω); C is the loop capacitor (F); BL
−3dB
is the loop bandwidth for −3 dB (Hz); d is the damping factor.
[5] V
i(VIF)
= 10 mV (RMS); ∆f = 1 MHz (VCO frequency offset related to the picture carrier frequency); white picture video modulation.
[6] Condition: luminance range (5 steps) from 0 % to 100 %.
[7] 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.
[8] The intermodulation figures are defined for:
a) f = 1.1 MHz (referenced to black and white signal) as
b) f = 3.3 MHz (referenced to color carrier) as
I
2
C-bus transceiver; pins SDA and SCL
[32][33]
f
SCL
SCL clock frequency 0 - 400 kHz
V
IH
HIGH-level input voltage 3 - V
CC
V
V
IL
LOW-level input voltage −0.3 - +1.5 V
I
IH
HIGH-level input current −10 - +10 µA
I
IL
LOW-level input current −10 - +10 µA
V
OL
LOW-level output voltage I
OL
= 3 mA - - 0.4 V
I
sink(o)
output sink current V
P
=0V - - 10 µA
I
source(o)
output source current V
P
=0V - - 10 µA
Output ports; pins OP1 and OP2
[34]
V
OL
LOW-level output voltage I
OL
= 2 mA (sink current) - - 0.4 V
V
OH
HIGH-level output voltage - - 6 V
I
sink(o)
output sink current - - 2 mA
I
o(max)
maximum output current sink or source; pin OP2
functions as VIF-AGC
output
--10µA
Table 20. Characteristics
…continued
V
P
=5V; T
amb
=25
°
C; see Table 22 for input frequencies; B/G standard is used for the specification (f
PC
= 38.9 MHz;
f
SC
= 33.4 MHz; PC / SC = 13 dB; f
mod
= 400 Hz); input level V
i(VIF)
= 10 mV (RMS) (sync level for B/G; peak white level
for L); IF input from 50
Ω
via broadband transformer 1 : 1; video modulation DSB; residual carrier for B/G is 10 % and for
L is 3 %; video signal in accordance with “ITU-T J.63 line 17 and line 330” or “NTC-7 Composite”; measurements taken in
test circuit of
Figure 26; unless otherwise specified.
Symbol Parameter Conditions Min Typ Max Unit
BL
3dB–
1
2π
------
K
O
K
D
R=
d
1
2
---
RK
O
K
D
C=
rad
V
--------
2π
Hz
V
------
µA
rad
--------
α
IM
20 log
V
0
at 4.4 MHz
V
0
at 1.1 MHz
--------------------------------------
3.6 dB+=
α
IM
20 log
V
0
at 4.4 MHz
V
0
at 3.3 MHz
--------------------------------------
=
