HDMP-1638G (Transmitter Section) Output Jitter Characteristics
(Measured with equivalent parts which have TTL REFCLK input)
T = 0°C to +70°C, V = 3.15 V to 3.45 V
A
CC
Symbol
Parameter
Units
Typ.
[1]
RJ
Random Jitter at DOUT, the High Speed Electrical Data Port, Specified as
1 Sigma Deviation of the 50% Crossing Point (RMS)
ps
8
[1]
DJ
Deterministic Jitter at DOUT, the High Speed Electrical Data Port (pk-pk)
ps
TBD
Note:
1. Defined by Fibre Channel Specification X3.230-1994 FC-PH Standard, Annex A, Section A.4 and tested using measurement method shown in
Figure 8.
HP70841B
PATTERN
GENERATOR
HP70311A
CLOCK SOURCE
+K28.5, -K28.5
+ DATA
- DATA
HP70841B
PATTERN
GENERATOR*
1.25 GHz
HP83480A
OSCILLOSCOPE
HP83480A
OSCILLOSCOPE
DIVIDE
BY 10
CIRCUIT
(DUAL
DIVIDE
BY 2
CIRCUIT
0000011111 + DATA
- DATA
TRIGGER
125 MHz
TRIGGER
CH1
CH2
1.25 GHz
OUTPUT)
CH1
CH2
HP70311A
CLOCK SOURCE
+DOUT -DOUT
HDMP-1638G
+DOUT -DOUT
HDMP-1638G
BIAS
TEE
-DIN
+DIN
VARIABLE
DELAY
REFCLK LOOPEN
Tx[0..9]
ENBYTSYNC
LOOPEN
TTL
125 MHz
* PATTERN
REFCLK
Tx[0..9]
GENERATOR
PROVIDES A
DIVIDE BY
Rx[0..9]
10 FUNCTION.
0011111000
(STATIC K28.7)
1.4 V
B. BLOCK DIAGRAM OF DJ MEASUREMENT METHOD
A. BLOCK DIAGRAM OF RJ MEASUREMENT METHOD
Figure 8. Transmitter jitter measurement method.
9
PMC-Sierra, Inc. - Not Recommended for New Designs
PMC [ PMC-SIERRA, INC ]
