MGCM02
Data Sheet
selected if RSSI is required in TDMA mode. The
RSSI is always powered on in FM mode
RX PLL OFF. Receive PLL and VCO circuits are
powered off in powerdown mode.
RSSI off. RSSI circuitry off when TDMA receive
mode selected. This is the default state in TDMA
mode
These power control modes are activated by the
PCA pin. The PCA pin must normally be held low
whilst a power control instruction is loaded via the
serial bus. The power mode is not activated however
until the PCA line is taken high. This allows accurate
timing of the power modes. The exception is the Alt
RX/TX mode which is loaded while PCA is low. The
receive and transmit modes can then be toggled with
the PCA pin.
TX PLL ON. Transmit PLL circuits remain powered
on in powerdown mode.
TX PLL OFF. Transmit PLL circuits are powered off
in powerdown mode.
In addition the receive LO Oscillator can be powered
down by setting VPD (Word 7 - Bit 4) to one. This
allows the LO to be provided differentially from an
external oscillator.
RX PLL ON. Receive PLL and VCO circuits remain
powered on in powerdown mode.
t1
t2
t3
t5
SCLK
t6
SDATA
Bit 23
Bit 22
Bit 21
Bit 0
t4
SLATCH
PCA
Applicable for power change (PCS<3:0> only)
Figure 7 - Serial Programming
7
6
5
4
3
2
1
A
B
C
D
E
F
G
Bottom View
Ball Pitch 0.8mm
Figure 8 - Package Ball Layout
18
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