D2-45057_10 INTERSIL [Intersil Corporation], D2-45057_10 Datasheet - Page 13

• Manufacturer Part Number: D2-45057_10
• Description: Intelligent Digital Amplifier PWM Controller and Audio Processor
• Manufacturer: INTERSIL [Intersil Corporation]

Pin Description
NOTES:
13. Unless otherwise specified all pin names are active high. Those that are active low have an “n” prefix, such as nRESET.
14. All power and ground pins of same names are to be tied together to all other pins of their same name. (i.e., CVDD pins to be
15. Thermal pad is internally connected to all 4 HGND ground pins (HGNDA, HGNDB, HGNDC, HGNDD). Any connection to the
PIN
65
66
67
68
tied together, CGND pins to be tied together, RVDD pins to be tied together, and RGND pins to be tied together.) Also, CGND
and RGND are to be tied together on board, and RGND and PWMGND pins are internally connected and are to be tied together
on the board.
thermal pad must be made to the common ground for these 4 ground pins.
(Note 13) TYPE
nRSTOUT
NAME
VOL0/
CGND
CVDD
PIN
nSS
I/O
O
P
P
VOLTAGE
LEVEL
13
(V)
3.3
1.8
1.8
3.3
(Continued)
Volume control pulse input and SPI slave select. At de-assertion of device reset, pin operates
as SPI slave select input. Then upon internal D2-45057, D2-45157 firmware execution, pin
becomes input for monitoring up/down phase pulses from volume control. (1 of 2 volume
input pins.)
Core ground
Core power, +1.8VDC. Used in the chip internal DSP, logic and interfaces.
Active low open drain output, with 16mA drive strength. Pin drives low from RVDD 3.3V
brownout detector, PWMVDD 3.3V brownout detector, or 1.8V brownout detector going
active. This output should be used to initiate a system reset to the nRESET pin upon
brownout event detection.
D2-45057, D2-45157
DESCRIPTION
July 29, 2010
FN6785.0