HMC6301 Datasheet, PDF (13/24 Pages) Analog Devices – Programmable baseband gain and filter bandwidth

Data Sheet
TIME = 0
ENABLE
HMC6301
1
27
CLK
DATA
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
SCAN OUT
WRITE DATA = (xxxxxxxx)
ARRAY ADDRESS
LSB
MSB LSB
MSB
CHIP
ADDRESS
LSB MSB
01234567
LSB
READ DATA
MSB
R/W = 0
Figure 18. Timing Diagram for Reading a Row of the Receiver Serial Interface
RECEIVER REGISTER ARRAY ASSIGNMENTS
All register arrays are read/write, unless otherwise noted.
Table 6. Receiver Register Array Assignments
Register Array
Row, Bit
Internal Signal Name
ROW0
ROW0, Bit 7
lna_pwrdwn
ROW0, Bit 6
bbamp_pwrdn_i
ROW0, Bit 5
bbamp_pwrdn_q
ROW0, Bit 4
divider_pwrdn
ROW0, Bit 3
mixer_pwrdn
ROW0, Bit 2
ifmixer_pwrdn/ifmixer_pwrd
n_i
ROW0, Bit 1
tripler_pwrdn
ROW0, Bit 0
ifvga_pwrdn
ROW1
ROW1, Bit 7
ipc_pwrdwn
ROW1, Bit 6
ifmix_pwrdn_q
ROW1, Bit 5
if_bgmux_pwrdn
ROW1, Bit 4
ROW1, Bit 3
ROW1, Bit 2
ask_pwrdn
bbamp_atten1_0
bbamp_atten1_1
ROW1, Bit 1
ROW1, Bit 0
bbamp_sell_ask
bbamp_sigshort
Signal Function
Active high to power down the LNA.
Active high to power down the baseband I channel.
Active high to power down the baseband Q channel.
Active high to power down the LO divider.
Active high to power down the RF mixer.
Active high to power down the I channel IF mixer.
Active high to power down the LO tripler.
Active high to power down the IF VGA.
Active high to power down on-chip current reference generator.
Active high to power down the Q channel IF mixer.
Active high to power down one of the three on-chip band gap references (IF) and
associated mux.
Active high to power down the ASK demodulator.
Controls first baseband attenuator; ROW1, Bits[2:3].
11 is 18 dB attenuation.
10 is 12 dB attenuation.
01 is 6 dB attenuation.
00 is 0 dB attenuation.
Active high to multiplex the AM detector output into the I channel baseband amplifier
input.
Active high to short the input to the I and Q channel baseband amplifiers.
Rev. A | Page 13 of 24