m21262 Mindspeed Technologies, m21262 Datasheet - Page 37

• Manufacturer Part Number: m21262
• Description: Cdr/reclocker With 4 1 Input Multiplexer
• Manufacturer: Mindspeed Technologies

Table 2-9.
Table 2-10.
21262-DSH-001-C
NOTES:
1.
2.
3.
4.
5.
6.
NOTES:
1.
2.
3.
4.
5.
6.
Symbol
Symbol
DR
V
Specified at recommended operating conditions—see
Performance measured on standard FR4 backplane such as standards provided by TYCO for 10GE XAUI.
Measured with PCML receiver without input equalization, using PCML output driver at 1200 mVpp output swing at beginning of line.
Combined adaptive equalization + output pre-emphasis performance will be better than individual performance, but less than the sum of the two
lengths.
Output pre-emphasis has greatest effect for data-rates higher than 1 Gbps.
Test setup: Pattern generator ⇒ DUT ⇒ test backplane ⇒ error detector
Specified at recommended operation conditions—see
Used for frequency acquisition.
Typical values are exact integer ratios for SONET applications.
Example 1200 mV
Input can accept a CMOS single-ended clock on differential P terminal when differential N terminal is decoupled to ground with a large enough
capacitor. CMOS input will then see an effective 100Ω load.
See
R
F
F
F
F
F
F
F
V
—
—
—
—
—
—
ICM
ref
ref
ref
ref
ref
ref
ref
OUT
ID
IN
Figure 2-3
Output signal data rate
Maximum error-free distance at 3.2 Gbps
Maximum error-free distance at 1.6 Gbps
Input frequency (Refclk_ctrl [3:1] = 000b)
Input frequency (Refclk_ctrl [3:1] = 001b)
Input frequency (Refclk_ctrl [3:1] = 010b)
Input frequency (Refclk_ctrl [3:1] = 011b)
Input frequency (Refclk_ctrl [3:1] = 100b)
Input frequency (Refclk_ctrl [3:1] = 101b)
Input frequency (Refclk_ctrl [3:1] = 110b)
Input differential voltage (P–P)
Input common-mode voltage
Input duty cycle
Frequency stability
Differential termination
Internal pull-down to Vss
Maximum DC input current
Output Pre-Emphasis Performance Specifications
Reference Clock Input
for input termination circuit.
pp
differential = 600 mV
Parameter
Parameter
pp
Mindspeed Proprietary and Confidential
Mindspeed Technologies
for each single-ended terminal.
Table
Table
2-2.
2-2.
Notes
Notes
2, 3, 6
2, 3, 6
2, 3
2, 3
2, 3
2, 3
2, 3
2, 3
4, 5
2, 5
—
—
—
—
2
2
5
®
Minimum
Minimum
120
160
320
100
250
42
—
—
10
20
40
80
40
—
—
—
—
Typical
Typical
155.52
311.04
622.08
19.44
38.88
77.76
Product Specifications
250
100
100
—
—
—
—
—
50
—
—
Maximum
Maximum
AVdd_I/O
1600
1600
100
200
300
400
800
100
40
60
25
50
60
—
—
15
Units
Units
Mbps
MHz
MHz
MHz
MHz
MHz
MHz
MHz
ppm
mV
mV
mA
kΩ
%
in
in
Ω
29