Datasheet

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MAX9257A/MAX9258A
Fully Programmable Serializer/Deserializer
with UART/I
2
C Control Channel
Typical Operating Characteristics (continued)
(V
CC_
= +3.3V, R
L
= 50O, C
L
= 8pF, T
A
= +25NC, unless otherwise noted.)
MAX9258A SUPPLY CURRENT
vs. FREQUENCY
MAX9257A/58A toc04
PCLK FREQUENCY (MHz)
SUPPLY CURRENT (mA)
4010 3515
40
20
60
80
100
120
0
5 452520 30
PRBS PATTERN
10-BIT
4% SPREAD
NO SPREAD
SERIAL LINK SWITCHING PATTERN WITHOUT
PREEMPHASIS (BIT RATE = 840MHz, 2m STP CABLE)
MAX9257A/58A toc05
MAX9257A/58A toc06
SERIAL LINK SWITCHING PATTERN WITH
PREEMPHASIS (BIT RATE = 840MHz, 2m STP CABLE)
(PREEMPHASIS = 100%)
MAX9257A OUTPUT POWER
SPECTRUM vs. PCLK FREQUENCY
MAX9257A/58A toc07
PCLK FREQUENCY (MHz)
OUTPUT POWER SPECTRUM (dBm)
2119
-20
-30
-10
0
-60
-70
-50
-40
10
20
-80
18 2220
10kHz BW
4% SPREAD
2% SPREAD
NO SPREAD
BIT ERROR RATE (< 10
-9
) vs.
CABLE LENGTH
MAX9257A/58A toc10
CABLE LENGTH (m)
SERIAL-DATA RATE (Mbps)
700
800
500
600
900
400
0 862 4 10 12 14 16 18 20
BER CAN BE AS LOW AS 10
-12
FOR
CABLE LENGTHS LESS THAN 10m.
NO SPREAD
STP CABLE
NO PREEMPHASIS
100% PREEMPHASIS
MAX9257A OUTPUT POWER
SPECTRUM vs. PCLK FREQUENCY
MAX9257A/58A toc08
PCLK FREQUENCY (MHz)
OUTPUT POWER SPECTRUM (dBm)
4440
-20
0
-60
-40
20
-80
38 4642
10kHz BW
1.5% SPREAD
2% SPREAD
NO SPREAD
MAX9258A OUTPUT POWER
SPECTRUM vs. PCLK FREQUENCY
MAX9257A/58A toc09
PCLK FREQUENCY (MHz)
OUTPUT POWER SPECTRUM (dBm)
4440
-20
0
-60
-40
20
-80
38 4642
10kHz BW
4% SPREAD
2% SPREAD
NO SPREAD
BIT ERROR RATE (< 10
-9
) vs.
CABLE LENGTH
MAX9257A/58A toc11
CABLE LENGTH (m)
SERIAL-DATA RATE (Mbps)
700
800
500
600
900
400
0 862 4 10 12 14 16 18 20
BER CAN BE AS LOW AS 10
-12
FOR
CABLE LENGTHS LESS THAN 10m.
2% SPREAD ON
MAX9257, STP CABLE
NO PREEMPHASIS
100% PREEMPHASIS