DC and Switching Characteristics
LatticeECP2/M Family Data Sheet
Lattice Semiconductor
SERDES Power Supply Requirements (LatticeECP2M Family Only)1
Over Recommended Operating Conditions
Symbol
Description
Typ.2
Units
Standby (Power Down)
I
I
I
I
I
I
V
V
current (per channel)
10
75
0
µA
µA
µA
µA
µA
µA
CCTX-SB
CCRX-SB
CCIB-SB
CCTX
current (per channel)
CCRX
Input buffer current (per channel)
Output buffer current (per channel)
SERDES PLL current (per quad)
SERDES termination current (per quad)
0
CCOB-SB
CCP-SB
30
10
CCAX33-SB
Operating (Data Rate = 3.125 Gbps)
I
I
I
I
I
I
V
V
current (per channel)
current (per channel)
19
34
mA
mA
mA
mA
mA
mA
CCTX-OP
CCRX-OP
CCIB-OP
CCOB-OP
CCP-OP
CCTX
CCRX
Input buffer current (per channel)
Output buffer current (per channel)
SERDES PLL current (per quad)
SERDES termination current (per quad)
4
13
26
0.01
CCAX33-OP
1. Equalization enabled, pre-emphasis disabled.
2. T = 25°C, power supplies at nominal voltage.
J
SERDES Power (LatticeECP2M Family Only)
Table 3-1 presents the SERDES power for one channel.
Table 3-1. SERDES Power1
Symbol
Description
Typ.2
90
Units
mW
mW
mW
mW
P
P
P
P
SERDES power (one channel @ 3.125 Gbps)
SERDES power (one channel @ 2.5 Gbps)
SERDES power (one channel @ 1.25 Gbps)
SERDES power (one channel @ 250 Mbps)
S-1CH-31
87
S-1CH-25
S-1CH-12
S-1CH-02
86
76
1. One quarter of the total quad power (includes contribution from common circuits, all channels in the quad operating, pre-emphasis dis-
abled, equalization enabled).
2. Typical values measured at 25oC and 1.2V.
3-8
LATTICE [ LATTICE SEMICONDUCTOR ]
