max9860 Maxim Integrated Products, Inc., max9860 Datasheet - Page 6

• Manufacturer Part Number: max9860
• Description: 16-bit Mono Audio Voice Codec
• Manufacturer: Maxim Integrated Products, Inc.

16-Bit Mono Audio Voice Codec
ELECTRICAL CHARACTERISTICS (continued)
(V
C
Typical values are at T
6
MICROPHONE AMPLIFIER
Preamplifier Gain
MIC PGA Gain
MIC PGA Gain Step Size
Common-Mode Rejection Ratio
MIC Input Resistance
MIC Input Bias Voltage
Total Harmonic Distortion + Noise
MIC Power-Supply Rejection
Ratio
MICROPHONE BIAS
MICBIAS Output Voltage
Load Regulation
MICBIAS Line Ripple Rejection
MICBIAS Noise Voltage
AUTOMATIC GAIN CONTROL
AGC Hold Duration
AGC Attack Time
AGC Release Time
AGC Threshold Level
NOISE GATE
NG Attack and Release Time
NG Threshold Level
Noise Gate Threshold Step Size
NG Attenuation
DIGITAL SIDETONE
Sidetone Gain Adjust
Sidetone Phase Delay
PREG
AVDD
_______________________________________________________________________________________
= C
= V
REG
PARAMETER
DVDD
= 1µF, A
= V
DVDDIO
A
VPRE
= +25°C.) (Note 2)
= +1.8V, R
= +20dB, A
A
SYMBOL
V
R
THD+N
L
VMICPGA
A
CMRR
MICBIAS
PSRR
DVST
PDLY
VMICPGA
IN_MIC
LRR
= ∞, headphone load (R
VPRE
= 0dB, MCLK = 13MHz, LRCLK = 8kHz, T
T
PGAM = 0x14–0x1F
PGAM = 0x00
V
All gain settings, measured at
MICLN/MICRN
A
V
A
V
AVDD = 1.7V to 1.9V
V
V
I
I
V
V
A-weighted
AGCHLD[1:0] setting range, FREQ ≠ 0
AGCATK[1:0] setting range, FREQ ≠ 0
AGCRLS[2:0] setting range, FREQ ≠ 0
AGCSTH[3:0] setting range, FREQ ≠ 0
2dB steps
MIC input to headphone
output, f = 1kHz, HP filter
disabled
LOAD
LOAD
A
IN
IN
IN
RIPPLE
RIPPLE
RIPPLE
RIPPLE
VPRE
VPRE
= +25°C
= 100mV
= 1V
= 31mV
= 1mA, T
= 1mA to 2mA
= 0dB, A
= +30dB, A
= 100mV at 1kHz, input referred
= 100mV at 10kHz, input referred
= 100mV
= 100mV
P-P
, f = 1kHz
P-P
P-P
L
CONDITIONS
, f = 1kHz
) connected between OUTP and OUTN, C
A
VMICPGA
at 217Hz
= +25°C
P-P
P-P
VMICPGA
at 217Hz
at 10kHz
= 0dB,
= 0dB,
PAM = 00
PAM = 01
PAM = 10
PAM = 11
8kHz
16kHz
A
= T
MIN
0.078
MIN
-0.5
0.7
1.5
-72
-60
19
29
30
60
50
-3
3
0
to T
MAX
TYP
1.55
+20
-75
-66
Off
0.8
0.2
9.5
0.5
2.2
1.1
20
30
50
50
95
82
76
82
81
REF
, unless otherwise noted.
0
0
1
4
= 2.2µF, C
MAX
+0.5
400
200
0.9
1.6
-18
-16
21
31
10
10
12
0
MICBIAS
UNITS
µV
mV
dB
dB
dB
dB
kΩ
dB
dB
dB
dB
dB
dB
dB
ms
ms
dB
dB
dB
dB
dB
ms
V
V
RMS
s
s
=