ADL6316ACCZ-R7 datasheet(19/37 Pages) AD

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Data Sheet

ADL6316

Rev. 0 | Page 19 of 37

DEVICE SETUP

The recommended sequence of steps to set up the ADL6316 is

as follows:

1. Set up the SPI interface. See Table 13.

2. Set up the common parameters, including auxiliary mux

control. See Table 14 and Table 15.

3. Set up the operating mode. See Table 16 to Table 19.

a. Set the attenuation on the DSA.

b. Enable or disable the amplifiers.

c. Set the amplifier reference currents.

d. Set the amplifier for linearity optimization.

e. Measure the internal temperature.

Table 13. SPI Interface Setup

Address

Setting

Notes

0x000

0x99

Soft reset, MSB first, SDO active (4-wire SPI)

0x001

0x00

Single instruction, master/slave readback, soft reset, and master/slave transfer

0x00A

0x00

Scratch pad

Table 14. Signal Path Trim

Address

Setting

Description

0x100

0xFF

Enable the DAC, auxiliary mux band gap, ADC, bias generator, DSA, and VVA

0x101

0x01

Enable IP3 optimization and 3.3 V LDO regulator

0x106

0x00

Disable the bias current, IBIAS, via the EN_IBIASGEN_RESISTOR bit (default setting)

0x105

0x00

VVA control source from DAC

0x104

0x0F

Attenuation of VVA at minimum attenuation, highest four bits of 12-bit word

0x103

0xFF

Attenuation of VVA at minimum attenuation, lowest eight bits of 12-bit word

Table 15. Auxiliary Mux Control

Address

Setting

Description

0x120

0x00

PTAT to ADC input, PTAT on mux output

0x121

0x00

Set SPI SDO voltage to 1.8 V

Table 16. Power-Down Mode Setup, TXEN = Logic Level 0

Address

Setting

Description

0x102

0x1F

14 dB attenuation on DSA

0x107

0x80

Set Amplifier 1 reference current, IREF (TRM_AMP1_IREF_0), for low power mode

0x108

0x80

Disable Amplifier 1

0x109

0x80

Set Amplifier 2 IREF (TRM_AMP2_IREF_0) for low power mode

0x10A

0x80

Disable Amplifier 2

Table 17. Normal Operating Mode Setup, TXEN = Logic Level 1

Address

Setting

Description

0x112

0x00

0 dB attenuation on DSA

0x117

0x82

Set Amplifier 1 IREF (TRM_AMP1_IREF_1)

0x118

0x81

Enable Amplifier 1

0x119

0x82

Set Amplifier 2 IREF (TRM_AMP2_IREF_1)

0x11A

0x81

Enable Amplifier 2

Table 18. Linearity Optimization

Address

Setting

Description

0x10B

0x02

Set the TRM_AMP2_CB bit

0x11B

0x02

Set the TRM_AMP2_IP3 bit

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