AD4134 datasheet(80/92 Pages) AD

80 / 92 page

Data Sheet

AD4134

analog.com

Rev. 0 | 80 of 92

Table 54. Bit Descriptions for DATA_PACKET_CONFIG

Bits

Bit Name

Settings

Description

Reset

Access

10 24-bit ADC data only.

11 24-bit ADC data followed by 6-bit CRC.

[3:0]

DCLK_FREQ_SEL

Controls DCLK Output Frequency.

0x0

R/W

0 fDCLK = 48 MHz.

1 fDCLK = 24 MHz.

10 fDCLK = 12 MHz.

11 fDCLK = 6 MHz.

100 fDCLK = 3 MHz.

101 fDCLK = 1.5 MHz.

110 fDCLK = 750 kHz.

111 fDCLK = 375 kHz.

1000 fDCLK = 187.5 kHz.

1001 fDCLK = 93.75 kHz.

1010 fDCLK = 46.875 kHz.

1011 fDCLK = 23.4375 kHz.

1100 fDCLK = 11.71875 kHz.

1101 fDCLK = 5.859 kHz.

1110 fDCLK = 2.929 kHz.

1111 fDCLK = 1.464 kHz.

Address: 0x12, Reset: 0x00, Name: DIGITAL_INTER-FACE_CONFIG

Table 55. Bit Descriptions for DIGITAL_INTERFACE_CONFIG

Bits

Bit Name

Settings

Description

Reset

Access

[7:4]

DAISY_CHAIN_DEV_NUM

Sets the Number of Devices Connected in a Daisy-Chain Configuration. This register

is only applicable to a device set to output DCLK to other devices in a daisy-chain

configuration. The register value acts as a clock cycle multiplier in DCLK output

configuration. For example, setting the daisy-chain device number to two doubles the

number of DCLK cycles output per ODR cycle.

0x0

R/W

0 Only one device is used.

1 2 devices are in daisy-chain configuration.

10 3 devices are in daisy-chain configuration.

11 4 devices are in daisy-chain configuration.

100 5 devices are in daisy-chain configuration.

101 6 devices are in daisy-chain configuration.

110 7 devices are in daisy-chain configuration.

111 8 devices are in daisy-chain configuration.

1000 9 devices are in daisy-chain configuration.

1001 10 devices are in daisy-chain configuration.

1010 11 devices are in daisy-chain configuration.

1011 12 devices are in daisy-chain configuration.

1100 13 devices are in daisy-chain configuration.

1101 14 devices are in daisy-chain configuration.

1110 15 devices are in daisy-chain configuration.

1111 16 devices are in daisy-chain configuration.

[3:2]

AVG_SEL

Multichannel ADC Conversion Data Averaging Control.

0x0

R/W

0 Data from all four channels are averaged and output on DOUT0. DOUT2 acts as

daisy-chain input. DOUT1 and DOUT3 are disabled.

1 Data from Channel 0 and Channel 1 are averaged and output on DOUT0. DOUT1 is

disabled. Channel 2 and Channel 3 are under normal operation.

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