Data Sheet

ADPA7008

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

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Rev. 0 | 6 of 28

Figure 2. Pin Configuration

Table 8. Pin Function Descriptions

Pin No.

Mnemonic

Description

1, 2, 12, 13

VDD1 to VDD4 Drain Biases for the Amplifier. External bypass capacitors of 4.7 µF, 0.01 µF, and 100 pF are required for these pins. See Figure 9 for the

interface schematic.

3, 5, 9, 11

NIC

Not Internally Connected. The NIC pins have no internal connections.

4, 10

VGG1, VGG2

6, 8, 15, 17

GND

Ground Pins. Connect the GND pins to RF and dc ground.

7

RFIN

RF Signal Input. The RFIN pin is ac-coupled and matched to 50 Ω. See Figure 6 for the interface schematic.

14

VDET

Detector Diode Used for Measuring the RF Output Power. Detection via the VDET pin requires the application of a dc bias voltage

through an external series resistor. Used in combination with VREF, the difference detector voltage, VREF − VDET, is a temperature

16

RFOUT

RF Signal Output. The RFOUT pin is ac-coupled and matched to 50 Ω. See Figure 8 for the interface schematic.

18

VREF

schematic.

EPAD

Exposed Pad. The exposed pad must be connected to RF and dc ground

INTERFACE SCHEMATICS

GND

Figure 3. GND Interface Schematic

VREF

Figure 4. VREF Interface Schematic

VDET

Figure 5. VDET Interface Schematic

RFIN

Figure 6. RFIN Interface Schematic

VGG1,

VGG2

Figure 7. VGG1, VGG2 Interface Schematic

RFOUT

Figure 8. RFOUT Interface Schematic

VDD1 TO VDD4

Figure 9. VDD1 to VDD4 Interface Schematic