MAX9853ETM+ Maxim Integrated Products, MAX9853ETM+ Datasheet - Page 58

• Manufacturer Part Number: MAX9853ETM+
• Description: IC CODEC AUDIO STEREO 48TQFN
• Manufacturer: Maxim Integrated Products
• Type: Stereo Audior

Specifications of MAX9853ETM+

• Data Interface: Serial
• Resolution (bits): 18 b
• Number Of Adcs / Dacs: 2 / 2
• Sigma Delta: Yes
• S/n Ratio, Adcs / Dacs (db) Typ: 81.5 / 88
• Dynamic Range, Adcs / Dacs (db) Typ: 82 / 87.5
• Voltage - Supply, Analog: 2.6 V ~ 3.3 V
• Voltage - Supply, Digital: 1.7 V ~ 3.3 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 48-TQFN Exposed Pad
• Conversion Rate: 48 KHz
• Resolution: 18 bit
• Operating Supply Voltage: 1.7 V to 3.3 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Snr: 75 dB
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

1 = Volume changes smoothed by stepping through
intermediate values.
0 = Volume changes made by bypassing intermediate
settings.
1 = Volume changes made only at zero crossings in the
audio waveform or after approximately 100ms.
0 = Volume changes made immediately upon request.
00 = Speaker amplifiers shutdown.
01 = Right channel enabled only.
10 = Left channel enabled only.
11 = Stereo speaker output enabled.
Stereo Audio CODECs with Microphone, DirectDrive
Headphones, Speaker Amplifiers, or Line Outputs
TGAIN selects the programmable-gain setting of the
VIBE signal data when signal conditioning is enabled.
Table 36. Audio Output Bit Descriptions
1
Table 37. Vibe and Headset Autodetect Bit Descriptions
Table 38. Transducer DAC Gain Settings
58
MAX9851,
REG
0x19
REG
0x18
______________________________________________________________________________________
TGAIN
0x0
0x1
0x2
0x3
0x4
0x5
0x6
0x7
MAX9851: Speaker Output Mode (SPMODE)
2
MAX9853
Volume Adjustment Smoothing (VSEN)
B7
B7
0
Zero-Crossing Detection (ZDEN)
T-DAC VIBE SIGNAL INPUT PGA
Transducer/Vibe Gain (TGAIN)
Disabled, PGA output = 0
VSEN
B6
B6
Reserved
Reserved
-30dB
-24dB
-18dB
-12dB
TGAIN
-6dB
ZDEN
B5
B5
Vibe Gain and Headset Autodetect Register (0x19)
B4
B4
LOMODE
SPMODE
00 = Line outputs disabled and SHDNOUT high.
11 = Line outputs enabled and SHDNOUT low.
000 = Headphone and receiver amplifiers shutdown.
001 to 011 = Reserved.
100 = Stereo headphone mode.
101 = Single-ended mono headphone mode (L+R).
110 = Balanced mono headphone mode (bridge-tied
load output L+R).
111 = Receiver amplifier enabled (L+R).
HRMODE selects between headphone amplifier and
receiver amplifier modes. The headphone amplifier and
receiver amplifier cannot be enabled at the same time.
To minimize click/pop, HRMODE should be pro-
grammed after power-on sequence and AOK = 1 (reg-
ister 0x01, bit B7).
Table 38 lists the gain setting for each code.
Headphone and Receiver Output Mode (HRMODE)
1
2
B3
TGAIN
ENA
0xA
0xB
0xC
0xD
0x8
0x9
0xE
0xF
B3
Audio Output Control Register (0x18)
MAX9853: Line Output Mode (LOMODE)
B2
SLEEP
B2
T-DAC VIBE SIGNAL INPUT PGA
HRMODE
Reserved
Reserved
B1
+12dB
+18dB
+24dB
+30dB
+6dB
B1
0dB
HSTEST
B0
B0