GS2975A Datasheet, PDF (10/27 Pages) Gennum Corporation – HD-LINX® III Multi-Rate SDI Automatic Reclocker with Dual Differential Outputs

2.3 AC Electrical Characteristics
Table 2-2: AC Electrical Characteristics
V_CC = 3.3V ±5%, T_A = 0°C to 70°C, unless otherwise shown. Typical values: V_CC = 3.3V and T_A =25°C
Parameter
Symbol Conditions
Min
Typ
Max
Serial Input Data Rate
–
–
270
Serial Input Jitter Tolerance
–
Worst case modulation
0.8
(e.g. square wave
modulation)
270, 1485, 2970 Mb/s
PLL Lock Time - Asynchronous
t_ALOCK
–
–
PLL Lock Time - Synchronous
t_SLOCK
KBB = Float, CLF=47nF
–
SD/HD = 0
KBB = Float, CLF=47nF
–
SD/HD = 1
Serial Output Rise/Fall Time
t_rSDO,t_rRCO 50Ω load (on chip)
–
SDO0 and RCO/DDO1 (20% -
80%)
t_fSDO,t_fRCO 50Ω load (on chip)
–
Serial Digital Input Signal Swing V_SID
Differential with internal
100
100Ω input termination
See Figure 2-1
Serial Digital Output Signal
VOD
100Ω load differential
300
Swing
See Figure
DDO0 and RCO/DDO1
DDO0 to DDO1 skew
DD_skew
–
–
DDO0 to RCO skew
DR_skew
2970 Mb/s, 1485 Mb/s
–
270 Mb/s
–
Serial Output Jitter on DDO0
t_OJ
270 Mb/s
–
(RCO/DDO1 disabled)
1485 Mb/s
–
2970 Mb/s
–
Serial Output Jitter on DDO0
t_OJ
270 Mb/s
–
and DDO1
(Both DDO0 and DDO1enabled)
1485 Mb/s
–
2970 Mb/s
–
Additive Jitter
t_AJ
Bypass mode, 2970 Mb/s
–
DDO0 enabled
Bypass mode, 2970 Mb/s
–
DDO0 and DDO1 enabled
–
–
1.5
0.5
5
110
110
–
450
156
28
37
0.02
0.06
0.10
0.02
0.06
0.11
15
20
2970
–
10
4
20
–
–
1100
600
–
–
–
0.07
0.10
0.15
0.07
0.10
0.16
–
–
Units
Mb/s
UI
Notes
–
–
ms
–
μs
–
μs
–
ps
–
ps
–
mV_p-p
–
mV_p-p
–
ps
1
ps
2
ps
2
UI
3
UI
4
UI
4
UI
3
UI
4
UI
4
ps
–
ps
–
GS2975A HD-LINX® III Multi-Rate SDI Automatic
Reclocker with Dual Differential Outputs
Data Sheet
41487 - 4
April 2009
10 of 27