CS22250 Datasheet, PDF (15/32 Pages) Cirrus Logic – WIRELESS 10BT CONTROLLER

NRPD
RXCLK
MDRDY
RXD
DACAVCC
DACAGND
RLQ
Output
Radio power down enable. This active low signal is used for power
management purposes for the radio circuitry.
Input
This is an input from base band processor. It is used to clock in received
data from base band processor.
Input
Receive data ready is an input signal from the baseband processor,
indicating a data packet is ready to be transferred to the MAC. The signal
returns to inactive state when there is no more receiver data or when the
link has been interrupted. This signal is sampled on the falling edge of
RXCLK and sampled at rising edge of RXCLK.
Input
Receive data is an input from the baseband processor transferring
demodulated header information and data in a serial format. The data is
frame aligned with MD_RDY. This signal is sampled on the falling edge
of RXCLK and sampled at rising edge of RXCLK.
Input
Analog power for DAC. 3.3V.
Input
Analog ground for DAC.
Output
Radio link quality is based on packet error rate. Active low implies
packet received without errors. Note: lost packets arenot detected.
CS22250 Wireless 10BT Controller
15 of 32
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DS551PP2 Rev. 3.0