Datasheet
MAX9880A
Low-Power, High-Performance
Dual I
2
S Stereo Audio Codec
32 ______________________________________________________________________________________
Digital Audio Interface
The MAX9880A’s dual digital audio interface supports a
wide range of operating modes to ensure maximum
compatibility. See Figures 1 to 5 for timing diagrams. In
master mode, the MAX9880A outputs LRCLK and
BCLK, while in slave mode they are inputs. When oper-
ating in master mode, BCLK can be configured in a
number of ways to ensure compatiblity with other audio
devices.
The MAX9880A has two sets of digital audio interface
pins, S1 and S2, that can be connected to one of two
digital audio paths, DAI1 or DAI2.
DAI1: Digital Audio Path 1 Operation
• DAC path with DR of 90dB and ADC path with DR of
82dB
• DAC path connectable to either S1 or S2
• ADC path connectable to either S1 or S2
• 8kHz to 48kHz sample rates
•I
2
S and TDM-compatible modes
• Voice filters or audio filter modes
DAI2: Digital Audio Path 2 Operation
• High-fidelity DAC path with DR of 96dB
• DAC path connectable to either S1 or S2
• 8kHz to 96kHz sample rates
•I
2
S and TDM-compatible modes
• Audio FIR filters
• No ADC clock control from DAI2 sample clock and
no voice filter modes available in DAI2
(DAI1, DAI2 for DHF = 0) (DAI2 for DHF = 1)
LRCLK (kHz)
8 11.025 12 16 22.05 24 32 44.1 48 64 88.2 96
10 13A9 1B18 1D7E 2752 3631 3AFB 4EA5 6C61 75F7 4EA5 6C61 75F7
11 11E0 18A2 1ACF 23BF 3144 359F 477E 6287 6B3E 477E 6287 6B3E
11.2896 116A 1800 1A1F 22D4 3000 343F 45A9 6000 687D 45A9 6000 687D
12 1062 1694 1893 20C5 2D29 3127 4189 5A51 624E 4189 5A51 624E
12.288 1000 160D 1800 2000 2C1A 3000 4000 5833 6000 4000 5833 6000
13 F20 14D8 16AF 1E3F 29AF 2D5F 3C7F 535F 5ABE 3C7F 535F 5ABE
14 E0B 135B 1511 1C16 26B5 2A21 382C 4D6A 5443 382C 4D6A 5443
15 D1B 1210 13A9 1A37 2420 2752 346E 4841 4EA5 346E 4841 4EA5
16 C4A 10EF 126F 1893 21DE 24DD 3127 43BD 49BA 3127 43BD 49BA
16.9344 B9C 1000 116A 1738 2000 22D4 2E71 4000 45A9 2E71 4000 45A9
17 B91 FF0 1159 1721 1FE0 22B2 2E43 3FC1 4564 2E43 3FC1 4564
18 AEC F0E 1062 15D8 1E1B 20C5 2BB1 3C36 4189 2BB1 3C36 4189
18.432 AAB EB3 1000 1555 1D66 2000 2AAB 3ACD 4000 2AAB 3ACD 4000
19 A59 E43 F86 14B2 1C85 1F0B 2964 390B 3E16 2964 390B 3E16
PCLK
(MHz):
(Note: Any
PCLK from
10MHz to
20MHz
with any
LRCLK
7.8kHz to
50kHz
can be
used.)
20 9D5 D8C EBF 13A9 1B18 1D7E 2752 3631 3AFB 2752 3631 3AFB
Table 6. Common NI Values
Note: Values in bold and underline are exact integers that provide maximum full-scale performance.