BC9824 Datasheet, PDF (4/22 Pages) Holtek Semiconductor Inc – Low Power High Performance Low Power High Performance

BC9824
Name
C/I _+2ND
C/I _-2ND
C/I _+3RD
C/I _-3RD
C/I _CO
C/I _+1ST
C/I _-1ST
C/I _+2ND
C/I _-2ND
C/I _+3RD
C/I _-3RD
Parameter (Condition)
ACS C/I 2MHz (1Mbps)
ACS C/I 2MHz (1Mbps)
ACS C/I 3MHz (1Mbps)
ACS C/I 3MHz (1Mbps)
Co-channel C/I (250Kbps)
ACS C/I 1MHz (250Kbps)
ACS C/I 1MHz (250Kbps)
ACS C/I 2MHz (250Kbps)
ACS C/I 2MHz (250Kbps)
ACS C/I 3MHz (250Kbps)
ACS C/I 3MHz (250Kbps)
Min Typical Max Unit
—
-24
—
dB
—
-12
—
dB
—
-28
—
dB
—
-16
—
dB
—
9
—
dB
—
-13
—
dB
—
-16
—
dB
—
-25
—
dB
—
-9
—
dB
—
-33
—
dB
—
-33
—
dB
Comment
Note: * Device is ESD sensitive. HBM (Human Body Mode) is based on MIL-STD-883H Method 3015.8. MM
(Machine Mode) is based on JEDEC EIA/JESD22-A115.
Function Description
State Control
State Control Diagram
• Pin signal: VDD, CE
• SPI register: PWR_UP, PRIM_RX, EN_AA, NO_
ACK, ARC, ARD
• System information: Time out, ACK received,
ARD elapsed, ARC_CNT, TX FIFO empty, ACK
packet transmitted, Packet received
BC9824 has built-in state machines that control the
state transition between different modes.
When auto acknowledge feature is disabled, state
transition will be fully controlled by MCU.
Power Down Mode
In power down mode BC9824 is in sleep mode with
minimal current consumption. SPI interface is still ac-
tive in this mode, and all register values are available
by SPI. Power down mode is entered by setting the
PWR_UP bit in the CONFIG register to low.
Standby-I Mode
By setting the PWR_UP bit in the CONFIG register to
1 and de-asserting CE to 0, the device enters standby-I
mode. Standby-I mode is used to minimize average
current consumption while maintaining short start-
up time. In this mode, part of the crystal oscillator
is active. This is also the mode which the BC9824
returns to from TX or RX mode when CE is set low.
Rev. 1.00
4
October 20, 2015