CMX991 Datasheet, PDF (8/56 Pages) CML Microcircuits – Two-mode demodulator

RF Quadrature Transceiver / RF Quadrature Receiver
CMX991/CMX992
3 Pin List
Package
Q3
Pin No.
1
Pin Name
(CMX991)
VCCIF
2
TXOUTP
3
TXOUTN
4
NC
5
NC
6
TXLON
7
TXLOP
8
MIXINN
9
MIXINP
10
MIXLON
11
MIXLOP
12
VCCRF
13
MIXOUT1
14
MIXOUT2
15
IFIP1
16
IFIP2
17
IFINN
18
SLI
19
RXQN
20
RXQP
21
QAMPP
22
QAMPN
23
QAMPO
24
RXIN
25
RXIP
26
IAMPP
27
IAMPN
28
IAMPO
29
DGND
30
CSN
31
RDATA
32
SCLK
33
CDATA
34
RESETN
35
DVDD
Pin Name
(CMX992)
VCCIF
NC
NC
NC
NC
NC
NC
MIXINN
MIXINP
MIXLON
MIXLOP
VCCRF
MIXOUT1
MIXOUT2
IFIP1
IFIP2
IFINN
SLI
RXQN
RXQP
QAMPP
QAMPN
QAMPO
RXIN
RXIP
IAMPP
IAMPN
IAMPO
DGND
CSN
RDATA
SCLK
CDATA
RESETN
DVDD
Signal
Type
Description
Power
O/P
NC
O/P
NC
NC
NC
I/P
NC
I/P
NC
I/P
I/P
I/P
I/P
Power
O/P
O/P
I/P
I/P
I/P
O/P
O/P
O/P
I/P
I/P
O/P
O/P
O/P
I/P
I/P
O/P
Power
I/P
T/S
I/P
I/P
I/P
Power
Supply for IF circuits
CMX991: Tx section positive output
CMX992: Do not connect to this pin, reserved for
future use
CMX991: Tx section positive output
CMX992: Do not connect to this pin, reserved for
future use
Do not connect to this pin, reserved for future
use
Do not connect to this pin, reserved for future
use
CMX991: Tx local oscillator negative input
CMX992: Do not connect to this pin, reserved for
future use
CMX991: Tx local oscillator positive input
CMX992: Do not connect to this pin, reserved for
future use
Rx mixer negative input
Rx mixer positive input
Rx mixer local oscillator negative input
Rx mixer local oscillator positive input
Supply for RF circuits
Rx mixer output 1
Rx mixer output 2
Rx IF positive input 1
Rx IF positive input 2
Rx IF negative input
Receiver Signal Level Indicator (SLI) output
RxQ negative output
RxQ positive output
RxQ amplifier positive input
RxQ amplifier negative input
Low IF output or RxQ amp output
RxI negative output
RxI positive output
RxI amplifier positive input
RxI amplifier negative input
RxI amplifier output
Digital ground
C-BUS chip select (active low), used to enable a
C-BUS data read or write operation on the chip
C-BUS serial data 3-state output (reply data) to
host
C-BUS clock input from the host
C-BUS serial data input (command data) from
the host
C-BUS reset (low for reset condition)
Supply to digital circuits
 2015 CML Microsystems Plc
8
D/991_992/20