MAX9853 Maxim Integrated Products, MAX9853 Datasheet - Page 23

• Manufacturer Part Number: MAX9853
• Description: (MAX9851 / MAX9853) Stereo Audio CODECs
• Manufacturer: Maxim Integrated Products

(AV
R
HP/REC volume = -20.0dB, SPK volume = -20.4dB, line output gain = -0.4dB, f
unless otherwise noted. Typical values are at T
Stereo Audio CODECs with Microphone, DirectDrive
OUTR+
-100
DD
-20
-40
-60
-80
30
25
20
15
10
20
5
0
Headphones, Speaker Amplifiers, or Line Outputs
vs. SUPPLY VOLTAGE (STEREO RECORD)
2.6
= CPV
10
to R
BOTH DACS DISABLED
BOTH ADCS ENABLED (48kHz)
BOTH MIC AMPS ENABLED
MIC INPUTS GROUNDED
48kHz, 44.1kHz, AND 22.05kHz
DAC FREQUENCY RESPONSE
OUTR-
AV
2.8
DD
100
DD
SUPPLY VOLTAGE (V)
= +3V, DV
SUPPLY CURRENT
FREQUENCY (Hz)
= 10kΩ, C1 = 0.22µF, C2 = C
3.0
______________________________________________________________________________________
1k
22.05kHz
3.2
48kHz AND 44.1kHz
DD
= DV
10k
3.4
DDS2
100k
3.6
= +1.8V, PV
-100
-100
A
AV
-20
-40
-60
-80
-20
-40
-60
-80
20
40
35
30
25
20
15
10
20
0
Typical Operating Characteristics (continued)
0
VMREG
= +25°C.)
DD
2.6
10
10
SUPPLY CURRENT vs. SUPPLY VOLTAGE
(STEREO RECORD AND PLAYBACK)
ABPE (REGISTER 0x07, B5)
BOTH DACS ENABLED (48kHz)
BOTH ADCS ENABLED (48kHz)
CLOCKING ZEROS INTO DACS
BOTH MIC AMPS ENABLED
MIC INPUTS GROUNDED
AMPS ENABLED ONE AT A TIME
HP AMP ENABLED
RECEIVER
DD
ABPE = 1
48kHz, 44.1kHz, AND 22.05kHz
ADC FREQUENCY RESPONSE
ADC FREQUENCY RESPONSE
= C
2.8
= +3.3V, R
100
100
8kHz VOICE MODE
VPREG
SUPPLY VOLTAGE (V)
FREQUENCY (Hz)
FREQUENCY (Hz)
ABPE = 0
3.0
SPEAKER AMP ENABLED
1k
= C
1k
HP
3.2
MBIAS
= 32Ω, Z
10k
10k
3.4
= C
S
SPK
= 48kHz for nonvoice mode, T
REF
100k
100k
3.6
= 8Ω + 10µH, R
= 1µF, MCLK = 13MHz, all PGAs = 0dB,
vs. SUPPLY VOLTAGE (DAC TO SPEAKER AMP)
-100
-20
-40
-60
-80
20
18
16
14
12
10
20
8
6
4
2
0
0
2.5
10
DBPE (REGISTER 0x07, B4)
BOTH DACS ENABLED (48kHz)
BOTH ADCS DISABLED
CLOCKING ZEROS INTO DACS
MIC AMPS DISABLED
REC
PV
3.0
DAC FREQUENCY RESPONSE
DBPE = 1
= 32Ω, R
DD
8kHz VOICE MODE
SUPPLY VOLTAGE (V)
SUPPLY CURRENT
3.5
100
FREQUENCY (Hz)
DBPE = 0
A
= T
4.0
OUTL+
MIN
4.5
1k
to T
to R
MAX
5.0
OUTL-
,
5.5
10k
23
=