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GS3490 数据表(PDF) 8 Page - Gennum Corporation

部件名 GS3490
功能描述  Low power operation from a single
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制造商  GENNUM [Gennum Corporation]
网页  http://www.gennum.com
标志 GENNUM - Gennum Corporation

GS3490 数据表(HTML) 8 Page - Gennum Corporation

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GS3490
Final Data Sheet
Rev. 1
GENDOC-058568
April 2014
8 of 22
Proprietary & Confidential
www.semtech.com
2.3 AC Electrical Characteristics
Table 2-3: AC Electrical Characteristics - Equalizer Mode
VCC = +3.3V ± 5%, TA = -20°C to +85°C (unless otherwise shown), Functional Temperature Range: -40°C to +85°C
Parameter
Symbol
Conditions
Min
Typ
Max
Units
Notes
Serial Data Rate
DRSDI
125
2970
Mb/s
1
SDI/SDI Input Voltage
Swing
ΔV
SDI
270Mb/s and 1.485Gb/s
720
800
950
mVppd
2
2.97Gb/s
720
800
880
mVppd
2
DDO/DDO Output
Voltage Swing
ΔV
DDO
100
Ω load, EQ_OP_CTL set for high
swing
700
850
1000
mVppd
100
Ω load, EQ_OP_CTL set for low
swing
350
425
500
mVppd
DDO/DDO Output Jitter
2.97Gb/s Belden 1694A: 0-140m
0.2
0.45
UI
3, 4
1.485Gb/s Belden 1694A: 0-200m
0.2
UI
3, 4
1.485Gb/s Belden 1694A: 200-260m
0.3
0.4
UI
3, 4
270Mb/s Belden 1694A: 0-300m
0.1
0.2
UI
3, 4
270Mb/s Belden 1694A: 300-500m
0.2
0.3
UI
3, 4
DDO/DDO Rise/Fall Time
tr, tf
1.485Gb/s and 2.97Gb/s, 20% - 80%
75
ps
270Mb/s, 20% - 80%
150
ps
Mismatch in Rise/Fall Time
Δt
r, Δtf
––
30
ps
Duty cycle distortion
SD/HD/3G
30
ps
Overshoot
10
%
Input Return Loss
5MHz - 1.485GHz
15
dB
5
1.485GHz - 2.97GHz
10
dB
5
SDI/SDI Input Resistance
Single-ended
1.9
k
Ω
SDI/SDI Input
Capacitance
–Single-ended
1.3
pF
DDO/DDO Output
Resistance
–Single-ended
50
W
Equalizer Mode Enable
Delay
––
1
μs
Notes:
1. Device performance is optimized for standard data rates (SD = 270Mb/s, HD = 1.485Gb/s, 3G = 2.970Gb/s).
2. 0m cable length.
3. All parts are production tested. In order to guarantee jitter over the full range of specification (VCC = 3.3V ±5%, TA = -40°C to +85°C, and
720-880mV launch swing from a SMPTE compliant cable driver) the recommended applications circuit must be used.
4. Based on validation data using the recommended circuit, at VCC = 3.3V, TA = 25°C and 800mV launch swing from a SMPTE compliant cable driver.
5. IRL depends on board design. The GS3490 achieves this specification on Semtech‘s evaluation boards.


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