Philips Semiconductors
Preliminary specification
Analog front end for digital video
processors
CONTENTS
1
2
3
4
5
6
7
7.1
7.2
7.3
7.4
7.5
7.6
7.7
7.8
7.9
7.10
7.11
7.12
7.13
8
8.1
8.2
FEATURES
GENERAL DESCRIPTION
ORDERING INFORMATION
QUICK REFERENCE DATA
BLOCK DIAGRAM
PINNING
FUNCTIONAL DESCRIPTION
Vision IF
DTV IF
Sound IF
CVBS/YC source selector
RGB/YPbPr source selector
Video ADCs and anti-alias filters
Audio source selectors and A to D converters
Microphone inputs
Clock generation, timing circuitry and black
level clamping
Data link transmitters
I
2
C-bus transceiver
Power supply circuit
East-west interface
I
2
C-BUS SPECIFICATION
Input control registers
Output status registers
9
10
11
11.1
12
13
13.1
13.2
14
15
15.1
15.2
15.3
15.4
15.5
16
17
18
19
LIMITING VALUES
PNX3000
THERMAL CHARACTERISTICS
QUALITY SPECIFICATION
Latch-up performance
CHARACTERISTICS
TEST AND APPLICATION INFORMATION
Power supply decoupling
Application diagram
PACKAGE OUTLINE
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 Oct 04
2
Philips Semiconductors
Preliminary specification
Analog front end for digital video
processors
1
FEATURES
PNX3000
•
Multi-standard vision IF circuit with alignment-free PLL
demodulator without external components
•
Internal (switchable) time-constant for the IF AGC circuit
•
DTV IF circuit for gain control of digital broadcast
TV signals
•
Sound IF amplifier with separate AGC circuit for
quasi-split sound
•
IF circuit can also be used for intercarrier sound
•
Analog demodulator for AM sound
•
Integrated sound trap and group delay correction
•
Video ident function detects the presence of a video
signal
•
Video source selector with four external CVBS or YC
inputs and two analog CVBS outputs with independent
source selection for each output
•
Two linear inputs for 1f
H
or 2f
H
RGB signals with source
selector; the RGB signals are converted to YUV before
A to D conversion; both inputs can also be used as
YPbPr input for DVD or set top box
•
Integrated anti-alias filters for video Analog to Digital
Converters (ADCs)
•
Four 10-bit video ADCs for the conversion of CVBS, YC,
YUV and down-mixed sound IF signals
•
Up to three different A to D converted video channels
are available simultaneously (e.g. CVBS, YC and YUV)
•
Audio source selector with five stereo inputs for analog
audio and two microphone inputs
3
ORDERING INFORMATION
PACKAGE
TYPE NUMBER
NAME
PNX3000HL/N3
LQFP128
DESCRIPTION
plastic low profile quad flat package; 128 leads; body 14
×
20
×
1.4 mm
VERSION
SOT425-1
•
Two microphone amplifiers with adjustable gain
•
Three analog audio outputs for SCART and line out with
independent source selection for each output
•
Four 1-bit audio sigma delta ADCs for the conversion of
audio and microphone signals
•
Three serial data link transmitters for interfacing with the
digital video processor at a bit rate of 594 Mbit/s per data
link
•
Voltage to current converter for driving external
east-west power amplifier
•
I
2
C-bus transceiver with selectable slave address and
maskable interrupt output.
2
GENERAL DESCRIPTION
The PNX3000 is an analog front end for digital video
processors. It contains an IF circuit for both analog and
digital broadcast signals, input selectors and ADCs for
analog video and audio signals. The digital output signals
are made available via three serial data links.
The IC has a supply voltage of 5 V. The supply voltage of
the analog audio part can be 5 V or 8 V, depending on the
maximum signal amplitudes that are required.
2004 Oct 04
3
Philips Semiconductors
Preliminary specification
Analog front end for digital video
processors
4
QUICK REFERENCE DATA
SYMBOL
Supply
V
P
I
P
I
CC(ASW)
Input signals
V
i(VIF)(dif)(rms)
V
i(DTVIF)(dif)(rms)
V
i(SIF)(rms)
V
i(CVBS/Y)(p-p)
V
i(RGB)(b-w)
V
i(Y)(p-p)
V
i(Pb)(p-p)
V
i(Pr)(p-p)
Video ADCs
B
v(−3dB)
f
sample
RES
−3
dB signal bandwidth
sample frequency
resolution
1f
H
mode
1f
H
mode
−
−
−
−
0
9
27
10
video IF amplifier sensitivity (differential; RMS
value)
video DTV IF amplifier sensitivity (differential;
RMS value)
sound IF amplifier sensitivity (RMS value)
CVBS or Y input voltage (peak-to-peak value)
RGB inputs (black-to-white value)
luminance input signal (peak-to-peak value)
Pb input signal (peak-to-peak value)
Pr input signal (peak-to-peak value)
note 2
note 2
note 2
note 2
−3
dB
−
−
−
−
−
−
−
−
75
75
45
1.0
0.7
1.0
0.7
0.7
main supply voltage
main supply current
note 1
note 1
audio supply current
4.75
−
4.75
−
5.0
285
8.0
3.5
PARAMETER
CONDITIONS
MIN.
TYP.
PNX3000
MAX.
UNIT
5.25
320
8.4
5.0
V
mA
V
mA
µV
µV
dBµV
V
V
V
V
V
V
CC(1ASW)
, V
CC(2ASW)
audio supply voltage
150
150
tbf
1.76
1.0
1.43
1.0
1.0
−
−
−
−
1
MHz
MHz
bit
Analog output signals
V
o(CVBS)(p-p)
I
o(TUNERAGC)
Notes
1. The supply voltage for the analog audio part of the IC can be 5 V or 8 V. For a supply voltage of 5 V the maximum
signal amplitudes at in- and outputs are 1 V (RMS). For a supply voltage of 8 V the maximum amplitudes are
2 V (RMS).
2. The RGB inputs can also be used as YPbPr input. The selection is made via the I
2
C-bus. The YPbPr input sensitivity
is in accordance with the DVD player specification.
analog CVBS output voltage (peak-to-peak
value)
tuner AGC output current range
2.0
−
V
mA
2004 Oct 04
4
Microcontroller MCU
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