Data Sheet

HMC1048ALC3B

Rev. B | Page 5 of 15

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

1

GND

7 GND

8 RF

9 GND

10

11

12

4

2

LO

3

GND

5

6

HMC1048ALC3B

TOP VIEW

(Not to Scale)

NOTES

1. NIC = NOT INTERNALLY CONNECTED.

THESE PINS CAN BE CONNECTED TO RF

AND DC GROUND. PERFORMANCE IS

NOT AFFECTED.

2. EXPOSED PAD MUST BE CONNECTED TO

THE RF AND DC GROUND OF THE PCB.

Figure 3. Pin Configuration

Table 5. Pin Function Descriptions

Pin No.

Mnemonic

Description

1, 3, 7, 9, 10, 12

GND

Ground. These pins must be connected to RF and dc ground of the PCB. See Figure 4 for the interface

schematic.

2

LO

Local Oscillator Port. This pin is ac-coupled and matched to 50 Ω. See Figure 5 for the interface schematic.

4, 6, 11

NIC

Not Internally Connected. These pins can be connected to RF and dc ground. Performance is not affected.

5

IF

Intermediate Frequency Port. For applications not requiring operation to dc, dc block this port externally

using a series capacitor of a value chosen to pass the necessary IF frequency range. For operation to dc, IF

must not source or sink more than 6 mA of current. Otherwise, die malfunction and possible die failure

can result. See Figure 6 for the interface schematic.

8

RF

Radio Frequency Port. This pin is ac-coupled and matched to 50 Ω. See Figure 7 for the interface

schematic.

EPAD

Exposed Pad. Exposed pad must be connected to the RF and dc ground of the PCB.

INTERFACE SCHEMATICS

GND

Figure 4. GND Interface Schematic

LO

Figure 5. LO Interface Schematic

IF

Figure 6. IF Interface Schematic

RF

Figure 7. RF Interface Schematic