HD-LINX
™
GS1522
HDTV Serial Digital Serializer
PRELIMINARY DATA SHEET
FEATURES
• SMPTE 292M compliant
• 20:1 parallel to serial conversion
• NRZ(I) encoder & SMPTE scrambler with selectable
bypass
• NRZ to NRZ(I) serial data conversion
• 1.485Gb/s and 1.485/1.001Gb/s operation
• lock detect output
• selectable DUAL or QUAD 75Ω cable driver outputs
• 8 bit or 10 bit input data support
• 20 bit wide inputs
• 3.3V and 5V CMOS/TTL compatible inputs
• single +5.0V power supply
•
APPLICATIONS
SMPTE 292M Serial Digital Interfaces for Video Cameras,
Camcorders, VTR's, Signal Generators, Portable Equip-
ment, and NLE's.
ORDERING INFORMATION
PART NUMBER
GS1522-CQR
PACKAGE
128 pin MQFP
TEMPERATURE
0°C to 70°C
DESCRIPTION
The GS1522 is a monolithic bipolar integrated circuit
designed to serialize SMPTE 274M and SMPTE 260M bit
parallel digital signals.
This device performs the following functions:
•
•
•
•
•
Sync word mapping for 8-bit/10-bit operation.
Parallel to Serial conversion of Luma & Chroma data
Interleaving of Luma and Chroma data
Data Scrambling (using the X +X +1 algorithm)
Conversion of NRZ to NRZI serial data (using the (X+1)
algorithm)
Selectable DUAL or QUAD 75Ω Cable Driver outputs
Lock Detect Output
1.485Gb/s or 1.485/1.001Gb/s operation
9
4
GS1522
•
•
This device requires a single 5V supply and typically
consumes less than 1000mW of power while driving two
75Ω cables.
The GS1522 uses the GO1515 external VCO connected to
the internal PLL circuitry to achieve ultra low noise PLL
performance.
RESET BYPASS
R
SET0
SYNC_DETECT
_DISABLE
20
DATA_IN[19:0]
20
INPUT
LATCH
SYNC DETECT
SMPTE
SCRAMBLER
INTERLEAVER
O/P0
RESET
BYPASS
S
CLK
PARALLEL
TO SERIAL
CONVERTER
NRZ TO NRZI
O/P1
SDO1-
P
LOAD
MUTE
R
SET1
SDO1_EN
PLL_LOCK
SDO1+
SDO0-
SDO0+
PCLK_IN
PLL
GO1515
FUNCTIONAL BLOCK DIAGRAM
Revision Date: August 2000
GENNUM CORPORATION P.O. Box 489, Stn. A, Burlington, Ontario, Canada L7R 3Y3
Tel. +1 (905) 632-2996 Fax. +1 (905) 632-5946 E-mail: info@gennum.com
www.gennum.com
Document No. 522 - 26 - 00
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Supply Voltage (V
S
)
Input Voltage Range (any input)
DC Input Current (any input)
Power Dissipation (V
CC
= 5.25V)
Input ESD Voltage
Die Temperature
Operating Temperature Range
Storage Temperature Range
Lead Temperature (soldering 10 seconds)
VALUE
5.5V
V
EE
– 0.5 < V
IN
< V
CC
+ 0.5
TBD
GS1522
TBD
TBD
125°C
0°C
≤
T
A
≤
70°C
-40°C
≤
T
S
≤
150°C
260°C
AC ELECTRICAL CHARACTERISTICS
V
CC
= 5V, V
EE
= 0V, T
A
= 0°C to 70°C unless otherwise specified.
PARAMETER
Serial data bit rate
Digital Serial Data
Outputs
CONDITIONS
SMPTE 292M
Differential outputs
SYMBOL
BR
SDO
V
SDO
MIN
-
750
TYP
1.485
800
MAX
-
850
UNITS
Gb/s
mV p-p
NOTES
1.485/1.001Gb/s also
With 52.3Ω 1% R
SET
Resistor
Rise/Fall times, 20-80%
Overshoot
Output Return Loss @
1.485GHz
t
r
, t
f
-
-
150
0
17
270
7
-
ps
%
dB
As per SMPTE292M
(5MHz to clock
frequency), using
Gennum Evaluation
Board, recommended
layout and components.
ORL
15
Lock Time
Typical Loop Bandwidth
Worst case
≤
0.1dB peaking,
1.485Gb/s
Pseudo-random
PRBS (2
23
-1)
(200kHz LBW)
Pathological
PRBS (2 -1)
(200kHz LBW)
Pseudo-random
(1.5 MHz LBW)
Pathological
(1.5 MHz LBW)
23
t
LOCK
-
-
200
0.200
250
1.5
ms
MHz
Intrinsic Jitter
t
IJR
-
-
100
ps p-p
t
IJP
-
-
100
ps p-p
t
IJR
-
-
100
ps p-p
t
IJP
-
-
100
ps p-p
2
GENNUM CORPORATION
522 - 26 - 00
AC ELECTRICAL CHARACTERISTICS - PARALLEL TO SERIAL STAGE
V
DD
= 5V, T
A
= 0°C to 70°C unless otherwise specified.
PARAMETER
Input Voltage Levels
CONDITIONS
SYMBOL
V
IL
V
IH
MIN
-
TYP
-
MAX
0.8
UNITS
V
NOTES
For compatibility with TTL
voltage levels
For compatibility with TTL
voltage levels
2.0
-
-
V
GS1522
Input Capacitance
Output Voltage Levels
C
IN
V
OL
V
OH
-
-
1
-
2
0.4
pF
V
For compatibility with TTL
voltage levels
For compatibility with TTL
voltage levels
74.25/1.001MHz also
2.4
-
-
V
Parallel Input Clock
Frequency
Input Clock Pulse Width
Low
Input Clock Pulse Width
High
Input Clock Rise/Fall time
Input Clock Rise/Fall time
Matching
Input Setup Time
Input Hold Time
P
CLK_IN
t
PWL
t
PWH
t
r
, t
f
t
rfm
t
SU
t
IH
-
74.25
-
MHz
5
-
-
ns
5
-
-
ns
-
-
500
200
1000
-
ps
ps
20% to 80%
1.0
0
-
-
-
-
ns
ns
DC ELECTRICAL CHARACTERISTICS
V
CC
= 5V, V
EE
= 0V, T
A
= 0°C to 70°C unless otherwise specified.
PARAMETER
Positive Supply Voltage
Power (system power)
CONDITIONS
Operating Range
V
CC
= 5.00V, T=25°C
V
CC
= 5.00V, T=25°C
SYMBOL
V
CC
P
D
P
D
MIN
4.75
-
-
-
-
-
TYP
5.00
950
1170
-
234
-
MAX
5.25
-
-
300
-
240
UNITS
V
mW
mW
mA
mA
mA
NOTES
(Driving two 75Ω outputs)
(Driving four 75Ω outputs)
(Driving four 75Ω outputs)
(Driving four 75Ω outputs)
(Driving two 75Ω outputs)
Supply Current
V
CC
= 5.25V, T=70°C
V
CC
= 5.00V, T=25°C
SDO1 disabled
V
CC
= 5.25V, 70°C
SDO1 disabled
V
CC
= 5.0V, 25°C
-
190
-
mA
(Driving two 75Ω outputs)
3
GENNUM CORPORATION
522 - 26 - 00
PIN CONNECTIONS
OSC_V
EE
A0
NC
NC
NC
V
EE2
R
SET0
V
CC2
NC
SDO0
SDO_NC
SDO0
NC
NC
NC
SDO1
SDO_NC
SDO1
NC
V
CC2
R
SET1
NC
NC
NC
NC
NC
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
GS1522
NC
NC
NC
NC
NC
NC
NC
NC
NC
VCO
VCO
PD_V
EE
PDSUB_V
EE
IJI
PD_V
CC
NC
NC
LFS
NC
LFS
PLCAP
DM
PLCAP
DFT_V
EE
LFA_V
EE
LFA
LBCONT
LFA_V
CC
NC
V
CC3
V
EE3
SYNC_DETECT_DISABLE
NC
NC
NC
NC
NC
NC
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
GS1522
TOP
VIEW
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
NC
NC
NC
NC
NC
NC
NC
SDO1_EN
V
EE2
V
EE2
V
EE2
V
EE2
V
EE2
V
CC2
V
CC2
V
CC2
V
CC2
V
CC2
NC
NC
V
EE2
RESET
BYPASS
PLL_LOCK
NC
XDIV20
NC
NC
BUF_V
EE
NC
NC
NC
NC
NC
NC
NC
PCLK_IN
V
EE3
NOTE: No Heat Sink Required
DATA_IN[19]
DATA_IN[18]
DATA_IN[17]
DATA_IN[16]
DATA_IN[15]
NC
NC
DATA_IN[14]
DATA_IN[13]
DATA_IN[12]
DATA_IN[11]
DATA_IN[10]
DATA_IN[9]
NC
NC
DATA_IN[8]
DATA_IN[7]
NC
NC
DATA_IN[6]
DATA_IN[5]
DATA_IN[4]
DATA_IN[3]
DATA_IN[2]
DATA_IN[1]
DATA_IN[0]
4
GENNUM CORPORATION
522 - 26 - 00
PIN DESCRIPTIONS
NUMBER
1, 95
SYMBOL
V
EE3
PCLK_IN
NC
LEVEL
Power
TYPE
Input
DESCRIPTION
Negative Supply.
Most negative power supply connection, for
input stage.
Parallel Data Clock.
74.25 or 74.25/1.001MHz
No Connect.
These pins are not used internally. These pins
should be floating.
2
3, 4, 5, 6, 7, 8,
9, 11, 12, 14,
19, 20, 32, 33,
34, 35, 36, 37,
38, 39, 40, 41,
42, 43,46, 50,
51, 52, 56, 60,
61, 62, 65, 66,
67, 68, 69, 70,
71, 72, 73, 80,
81, 83, 93, 97,
98, 99, 100,
101, 102, 108,
109, 116, 117,
120, 121
10
TTL
Input
GS1522
BUF_V
EE
Power
TEST
Negative Supply/Test Pin.
Most negative power supply
connection. For buffer for oscillator/divider for test purposes only.
Leave floating for normal operation.
Test Pin.
Test block output. Leave floating for normal operation.
Status Signal Output.
Indicates when the GS1522 is phase locked
to the incoming PCLK_IN clock signal. LOGIC HIGH indicates
PLL is in Lock. LOGIC LOW indicates PLL is out of Lock.
Control Signal Input.
Used to bypass the scrambling function if
data is already scrambled by GS1501 or if non-SMPTE encoded
data stream such as 8b/10b is to be transmitted. When BYPASS is
LOW, the SMPTE scrambler and NRZ(I) encoder are enabled.
When BYPASS is HIGH, the SMPTE scrambler and NRZ(I) encoder
are bypassed.
Control Signal Input.
Used to reset the SMPTE scrambler. For
logic HIGH; Resets the SMPTE scrambler and NRZ(I) encoder.
For logic LOW: normal SMPTE scrambler and NRZ(I) encoder
operation.
Negative Supply.
Most negative power supply connection. For
Cable Driver outputs and all other digital circuitry excluding input
stage and PLL stage.
Positive Supply.
Most positive power supply connection. For
Cable Driver outputs and all other digital circuitry excluding input
stage and PLL stage.
Control Signal Input.
Used to enable or disable the second serial
data output stage. This signal must be tied to GND to enable this
stage. Do not connect to a logic low.
Control Signal Input.
External resistor is used to set the data
output amplitude for SDO1 and SDO1. Use a ±1% resistor.
Serial Data Output Signal.
Current mode serial data output #1.
Use 75Ω ±1% pull up resistors to V
CC2
.
13
15
XDIV20
PLL_LOCK
TTL
TTL
TEST
Output
16
BYPASS
TTL
Input
17
RESET
TTL
Input
18, 26, 27, 28,
29, 30, 59
V
EE2
Power
Input
21, 22, 23, 24,
25, 45, 57
V
CC2
Power
Input
31
SDO1_EN
Power
Input
44
R
SET1
SDO1+, SDO1-
Analog
Input
47, 49
Output
48, 54
53, 55
SDO_NC
SDO0+, SDO0-
Analog
Output
No Connect.
Not used internally. This pin must be left floating.
Serial Data Output Signal.
Current mode serial data output #0.
Use 75Ω ± 1% pull up resistors to V
CC2
.
5
GENNUM CORPORATION
522 - 26 - 00
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