Specifications

35Maxim Integrated
HDCP Gigabit Multimedia Serial
Link Serializer/Deserializer
MAX9263/MAX9264
Line Equalizer
The deserializer includes an adjustable line equalizer to
further compensate cable attenuation at high frequen-
cies. The cable equalizer has 11 selectable levels of
compensation from 2.1dB to 13dB (Table 5). The EQS
input selects the default equalization level at power-up.
The state of EQS is latched upon power-up or when
resuming from power-down mode. To select other
equalization levels, set the corresponding register bits
in the deserializer (0x05 D[3:0]). Use equalization in the
deserializer, together with preemphasis in the serializer,
to create the most reliable link for a given cable.
Table 4. Serializer CML Driver Strength (Default Level, CMLLVL = 11)
Table 5. Deserializer Cable Equalizer Boost Levels
*Negative preemphasis levels denote deemphasis.
PREEMPHASIS LEVEL (dB)*
PREEMPHASIS SETTING
(0x05, D[3:0])
ICML
(mA)
IPRE
(mA)
SINGLE-ENDED VOLTAGE SWING
MAX (mV) MIN (mV)
-6.0 0100 12 4 400 200
-4.1 0011 13 3 400 250
-2.5 0010 14 2 400 300
-1.2 0001 15 1 400 350
0 0000 16 0 400 400
1.1 1000 16 1 425 375
2.2 1001 16 2 450 350
3.3 1010 16 3 475 325
4.4 1011 16 4 500 300
6.0 1100 15 5 500 250
8.0 1101 14 6 500 200
10.5 1110 13 7 500 150
14.0 1111 12 8 500 100
BOOST SETTING (0x05 D[3:0]) TYPICAL BOOST GAIN (dB)
0000 2.1
0001 2.8
0010 3.4
0011 4.2
0100
5.2
Power-Up Default
(EQS = high)
0101 6.2
0110 7
0111 8.2
1000 9.4
1001
10.7
Power-Up Default
(EQS = low)
1010 11.7
1011 13