AD1985JST Analog Devices Inc, AD1985JST Datasheet - Page 34

• Manufacturer Part Number: AD1985JST
• Description: IC CODEC STEREO 6-DAC 20B 48LQFP
• Manufacturer: Analog Devices Inc
• Series: SoundMAX®r
• Type: Audio Codec '97r

Specifications of AD1985JST

• Rohs Status: RoHS non-compliant
• Data Interface: Serial
• Resolution (bits): 16, 20 b
• Number Of Adcs / Dacs: 2 / 6
• Sigma Delta: No
• Dynamic Range, Adcs / Dacs (db) Typ: 84 / 90
• Voltage - Supply, Analog: 4.5 V ~ 5.5 V
• Voltage - Supply, Digital: 2.97 V ~ 3.63 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 48-LQFP

AD1985
EQ Data Register (Index 0x62)
Reg.Num. Name
0x62
This read/write register is used to transfer EQ biquad coefficients into memory.
The register data is transferred to, or retrieved from, the address pointed to by the BCA bits in the EQ control register (0x60).
Data will be written to memory only if the EQM bit (Register 0x60, Bit 15) is asserted.
CFD[15:0]
EQ Data CFD15 CFD14 CFD13 CFD12 CFD11 CFD10 CFD9 CFD8 CFD7 CFD6 CFD5 CFD4 CFD3 CFD2 CFD1 CFD0 0x0000
Coefficient Data. The biquad coefficients are fixed-point format values with 16 bits of resolution. The CFD15 bit is the MSB
and the CFD0 bit is the LSB.
D15
D14
D13
D12
D11
D10
Rev. A | Page 34 of 48
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
Default