Datasheet

www.ti.com
PCM1870
SLAS544A – MAY 2007 – REVISED SEPTEMBER 2007
Register 96
B15 B14 B13 B12 B11 B10 B9 B8 B7 B6 B5 B4 B3 B2 B1 B0
Register 96 0 IDX6 IDX5 IDX4 IDX3 IDX2 IDX1 IDX0 NEN2 NEN1 NUP2 NUP1 RSV RSV RSV MXEN
IDX[6:0]: 110 0000b (60h) Register 96
NEN2: Second-Stage Notch Filter Enable
Default value: 0
The PCM1870 has a two-stage notch filter. The two stages can separately set filter characteristics. This bit is
used to enable the second stage.
NEN2 = 0 Disabled (default)
NEN2 = 1 Enabled
NEN1: First-Stage Notch Filter Enable
Default value: 0
The PCM1870 has a two-stage notch filter. The two stages can separately set filter characteristics. This bit is
used to enable the first stage.
NEN1 = 0 Disabled (default)
NEN1 = 1 Enabled
NUP2: Second-Stage Notch Filter Coefficients Update
Default value: 0
This bit is used to update the coefficients for the second-stage notch filter. The coefficients written to registers
101, 102, 103, 104 are updated when NUP2 = 1.
NUP2 = 0 No update (default)
NUP2 = 1 Update
NUP1: First-Stage Notch Filter Coefficients Update
Default value: 0
This bit is used to update the coefficients for the first-stage notch filter. The coefficients written to registers 97,
98, 99, 100 are updated when NUP1 = 1.
NUP1 = 0 No update (default)
NUP1 = 1 Update
MXEN: Digital Monaural Mixing
Default value: 0
This bit is used to enable or disable monaural mixing in the section that combines L-ch and R-ch digital data.
MXEN = 0 Disabled (stereo, default)
MXEN = 1 Enabled (monaural mixing)
40 Submit Documentation Feedback Copyright © 2007, Texas Instruments Incorporated
Product Folder Link(s): PCM1870