CS7410
Pin
Signal Name Type
Description
85
DAC_LN
O
GPO controlled by Mode bit 13
87
DAC_RP
O
GPO controlled by Mode bit 13
89
DAC_RN
O
GPO controlled by Mode bit 13
96
IEC958_O
B
GPIO controlled by Mode bit 14
Table 17. Redefined General Purpose Pins (Continued)
4.10
Power and Ground
Table 18 describes the power and ground pins. The CS7410 requires 3 different types of power supplies for
the PLLs, internal logic, and IO pins. The PLLs and internal logic use 1.8 V supply voltage. The IO pins use
3.3 V supply voltage. An optional separate supply can be used to provide clean 3.3 V to the Sigma-Delta
DACs digital output pads. It is recommended that you use good layout techniques to provide isolation be-
tween the supply types on the board. Contact Cirrus Logic applications engineering for layout guidelines.
Pin
1
2
14, 40, 73
12, 38, 71
19, 42, 64, 86
16, 44, 75
88
Signal Name
PLL_GND
PLL_1V8
CORE_GND
CORE_1V8
IO_GND
IO_3V3
DAC_3V3
Type
Description
Ground for internal PLLs
1.8V for internal PLLs
Ground for internal core logic
1.8V for internal core logic
Ground for Digital I/Os
3.3V for Digital I/Os
3.3V for Sigma Delta DAC Digital I/Os
Table 18. Power and Ground
36
DS553PP1