zic2410 California Eastern Laboratories, zic2410 Datasheet - Page 74

• Manufacturer Part Number: zic2410
• Description: Single-chip Solution, Compliant With Zigbee
• Manufacturer: California Eastern Laboratories

RXRFPU (RF RX PATH POWER-UP REGISTER, 0x2205)
This register is used to power up the circuits related to reception in RF block
Bit
2
1
0
7
6
5
4
Rev A
BBAMP
VGAPD
ADCPD
LNAPU
RLPFP
RMIXB
Name
RMIXP
UFPU
PU
D
U
RX Low-pass Filter Power-down. With the RLPFPU field, controls the
power-down state of the RX Low-pass Filter (LPF) circuit. In the power-
down state, the RX LPF circuit is disabled and draws no current. When
the RLPFPU field is set to ‘1’ and the RLPFPD field is set to’0’, the RX
LPF circuit is in the power-down state. The following table shows the
RX LPF circuit state based on the values of the RLPFPD and RLPFPU
fields.
Variable Gain Amplifier Power-down. With the VGAPU field, controls
the power-down state of the Variable Gain Amplifier (VGA) circuit. In the
power-down state, the VGA circuit is disabled and draws no current.
When the VGAPU field is set to ‘1’ and the VGAPD field is set to’0’, the
VGA circuit is in the power-down state. The following table shows the
VGA circuit state based on the values of the VGAPD and VGAPU fields.
Analog-to-Digital Converter Power-down. With the ADCPUfield,
controls the power-down state of the ADC circuit. In the power-down
state, the ADC circuit is disabled and draws no current. When the
ADCPU field is set to ‘1’ and the ADCPD field is set to’0’, the ADC circuit
is in the power-down state. The following table shows the ADC circuit
state based on the values of the ADCPD and ADCPU fields.
Low Noise Amplifier Power-up. Controls the power-up state of the
LNA circuit. In the power-up state, the LNA circuit is enabled. When the
LNAPU field is set to ‘0’, the LNA circuit is in the power-up state. See
LNAPD above for truth table.
RX Mixer Power-up. Controls the power-up state of the RX Mixer
circuit. In the power-up state, the RX Mixer circuit is enabled. When the
RMIXPU field is set to ‘0’, the RX Mixer circuit is in the power-up state.
See RMIXPD above for truth table.
Base-band Analog Amplifier Power-up. Controls the power-up state
of the BBAMP circuit. In the power-up state, the BBAMP circuit is
enabled. When the BBAMPPU field is set to ‘0’, the BBAMP circuit is in
the power-up state. See BBAMPPD above for truth table.
RFRX-path Mixer Buffer Power-up. Controls the power-up state of the
RX Mixer Buffer circuit. In the power-up state, the RX Mixer Buffer
circuit is enabled. When the RXMIXBUFPU field is set to ‘0’, the RX
Mixer Buffer circuit is in the power-up state. See RXMIXBUFPD above
for truth table.
VGAPD
ADCPD
RLPFPD
1
1
0
0
1
1
0
0
1
1
0
0
VGAPU
ADCPU
RLPFPU
1
0
1
0
1
0
1
0
Document No. 0005-05-07-00-000
1
0
1
0
ZIC2410 Datasheet
Controlled by the modem block
Always power-up state.
Always power-down state.
Always power-up state.
Controlled by the modem block
Always power-up state.
Always power-down state.
Always power-up state.
Descriptions
Controlled by the modem block
Always power-up state.
Always power-down state.
Always power-up state.
RX LPF state
VGA state
ADC state
Page 74 of 119
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Reset
Value
0
0
0
1
1
1
1