HMC558A Datasheet, PDF (5/15 Pages) Analog Devices – Conversion loss: 7.5 dB typical at 5.5 GHz to 10 GHz

Data Sheet
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
12 11 10
GND 1
9 GND
HMC558A
LO 2
TOP VIEW
8 RF
(Not to Scale)
GND 3
7 GND
45 6
NOTES
1. NIC = NO INTERNAL CONNECTION.
2. EXPOSED PAD. CONNECT THE EXPOSED PAD TO A LOW
IMPEDANCE THERMAL AND ELECTRICAL GROUND PLANE.
Figure 2. Pin Configuration
HMC558A
Table 4. Pin Function Descriptions
Pin No.
Mnemonic Description
1, 3, 4, 6, 7, 9 GND
Ground. See Figure 6 for the ground interface schematic.
2
LO
Local Oscillator Port. This pin is ac-coupled and matched to 50 Ω. See Figure 4 for the LO interface schematic.
5
IF
DC-Coupled IF. For applications not requiring operation to dc, dc block this port externally using a series
capacitor whose value is chosen to pass the necessary IF frequency range. For operation to dc, this pin
must not source or sink more than 3 mA of current, or device nonfunction and possible device failure may
result. See Figure 5 for the IF interface schematic.
8
RF
RF Port. This pin is ac-coupled internally and matched to 50 Ω. See Figure 3 for the RF interface schematic.
10, 11, 12
NIC
No Internal Connection. These pins can be grounded.
EPAD
Exposed Pad. Connect the exposed pad to a low impedance thermal and electrical ground plane.
INTERFACE SCHEMATICS
RF
Figure 3. RF Interface
LO
Figure 4. LO Interface
IF
Figure 5. IF Interface
GND
Figure 6. Ground Interface
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