HPMX-5002 Pin Description
No. Mnemonic
I/O Type
Analog O/P
Analog I/P
Analog O/P
Analog I/P
Analog O/P
Analog DC
CMOS I/P
CMOS O/P
Analog O/P
Analog DC
CMOS O/P
Analog I/P
DC Supply
Ground
Description
1
2
IFOP1
DMOD
DMODOP
BUF1
BUF2
TCNT
TCSET
DATOP
RSSI
Output of IF amplifier, feeds quadrature network for discriminator
Input to discriminator mixer, driven by output of quadrature network
Output of discriminator mixer, drives external low-pass data filter
Noninverting input of buffer amplifier that drives the data slicer
Output of buffer amplifer that drives the data slicer
External capacitor connection which sets time constant for data slicer
Data slicer time constant select
3
4
5
6
7
8
Output bit stream from data slicer
9
Receive Signal Strength Indicator output
External capacitor connection which sets time constant for lock detector
Indicates that LO2 PLL is in lock status
Reference signal for LO2 PLL
10
11
12
13
14
15
16
17
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
LKFIL
LKDET
REF
VCC3
VEE3
DIV1
PLL supply voltage
PLL ground
CMOS I/P
CMOS I/P
CMOS I/P
Analog O/P
Ground
Controls divide ratio for reference frequency input to the LO2 PLL
Controls divide ratio for reference frequency input to the LO2 PLL
Controls divide ratio for VCO frequency input to the LO2 PLL
LO2 PLL phase/frequency detector charge pump output
LO2 VCO ground
DIV2
DIV3
PFD
VEE4
VCC4
AGC
DC Supply
Analog DC
Analog I/P
Analog O/P
Analog I/P
Analog O/P
Analog O/P
DC Supply
Ground
LO2 VCO supply voltage
External capacitor connection to compensate LO2 VCO AGC loop
VCO tank force line
VCOA
VCOB
VCOADJ
OSCOP
OSCOPB
VCC5
VEE5
IPDC
VCO tank sense line
Controls amplitude of buffered LO2 VCO output
Buffered LO2 output (+)
Buffered LO2 output (-)
1st IF supply voltage
1st IF ground
Analog DC
Analog I/P
DC Supply
Ground
External capacitor connection for decoupling 1st IF bias point
1st IF input signal
IP1
VCC1
VEE1
IF1
IF limiting amplifier supply voltage
IF limiting amplifier ground
Analog O/P
Downconverted signal from front-end mixer, drives external filter
(hi-Z output, open collector)
37
IFIP1
Analog I/P
Input to IF limiting amplifier, driven by external filter
(600 Ω impedance, internally set)
38
39
40
DC1A
VCC2
VEE2
Analog DC
DC Supply
Ground
External capacitor connection for decoupling IF limiting amplifier
IF limiting amplifier supply voltage
IF limiting amplifier ground
7-109