VP531E Datasheet, PDF (1/16 Pages) Mitel Networks Corporation – NTSC/PAL Digital Video Encoder

Supersedes DS4573 1.4 May 1997 edition
The VP531/VP551 converts digital Y, Cr, Cb, data into
analog NTSC/PAL composite video and S-video signals
The outputs are capable of driving doubly terminated 75
ohm loads with standard video levels.
The device accepts data inputs complying with CCIR
Recommendation 601 and 656. The data is time multiplexed
on an 8 bit bus at 27MHz and is formatted as Cb, Y, Cr, Y
(i.e. 4:2:2). The video blanking and sync information from
REC 656 is included in the data stream when the VP531 is
working in slave mode.
The output pixel rate is 27MHz and the input pixel rate
is half this frequency, i.e. 13.5MHz.
All necessary synchronisation signals are generated
internally when the device is operating in master mode. In
slave mode the device will lock to the TRS codes or the HS
and VS inputs.
The rise and fall times of sync, burst envelope and
video blanking are internally controlled to be within
composite video specifications.
Two 9 bit digital to analog converters (DACs) are used
to convert the digital luminance and chrominance data into
analog signals. An inverted composite video signal is
generated by summing the complementary current outputs
of each DAC. An internally generated reference voltage
provides the biasing for the DACs.
FEATURES
s Converts Y, Cr, Cb data to analog composite video and
S-video
s Supports CCIR recommendations 601 and 656
s All digital video encoding
s Selectable master/slave mode for sync signals
s Switchable chrominance bandwidth
s Switchable pedestal with gain compensation
s SMPTE 170M NTSC or CCIR 624 PAL compatible
outputs
s GENLOCK mode
s I²C bus serial microprocessor interface
s VP531E supports Macrovision anti-taping format REV
6.1 in PAL and REV 7.01 in NTSC
APPLICATIONS
s Digital Cable TV
s Digital Satellite TV
s Multi-media
s Video games
s Karaoke
s Digital VCRs
ORDERING INFORMATION
VP531E/CG/GP1N
VP551E/CG/GP1N
VP531E/VP551E
NTSC/PAL Digital Video Encoder
Advance Information
DS4573 - 2.3 October1998
PIN 64
PIN 1
GP64
Fig.1 Pin connections (top view)
PIN FUNCTION
PIN FUNCTION
1
VDD
33
VDD
2
GND
34
RESET
3
D0 (VS I/O)
35
REFSQ
4
D1 (HS I/O)
36
GND
5
D2 (FC0 O/P)
37
VDD
6
D3 (FC1 O/P)
38
GND
7
D4 (FC2 O/P)
39
PD7
8
D5
40
PD6
9
D6 (SCSYNC I/P) 41
PD5
10
D7 (PALID I/P)
42
PD4
11
GND
43
PD3
12
VDD
44
PD2
13
GND
45
PD1
14
GND
46
PD0
15
PXCK
47
GND
16
VDD
48
VDD
17
CLAMP
49
AGND
18
COMPSYNC
50
VREF
19
GND
51
DACGAIN
20
VDD
52
COMP
21
TDO
53
AVDD
22
TDI
54
LUMAOUT
23
TMS
55
AGND
24
TCK
56
COMPOUT
25
GND
57
AGND
26
SA1
58
CHROMAOUT
27
SA2
59
AVDD
28
SCL
60
N/C
29
VDD
61
N/C
30
SDA
62
AVDD
31
GND
63
AVDD
32
VDD
64
N/C