92HD71B7 Datasheet, PDF (27/216 Pages) Integrated Device Technology – 4-CHANNEL HD AUDIO CODEC OPTIMIZED FOR LOW POWER

92HD71B7
4-CHANNEL HD AUDIO CODEC OPTIMIZED FOR LOW POWER
PC AUDIO
ESD: The 92HD71B is an ESD (electrostatic discharge) sensitive device. The human body and test equipment can
accumulate and discharge electrostatic charges up to 4000 Volts without detection. Even though the 92HD71B implements
internal ESD protection circuitry, proper ESD precautions should be followed to avoid damaging the functionality or
performance.
2.2. 92HD71B7 5V, 4.75V, and 3.3V Analog Performance Characteristics (PRELIMINARY)
(Tambient = 25 ºC, AVdd = Supply ± 5%, DVdd = 3.3V ± 5%, AVss=DVss=0V; 20Hz to 20KHz swept
sinusoidal input; Sample Frequency = 48 kHz; 0 dB = 1 VRMS, 10KΩ//50pF load, Testbench Char-
acterization BW: 20 Hz – 20 kHz, 0 dB settings on all gain stages)
Table 13. 92HD71B7 5V, 4.75V, and 3.3V Analog Performance Characteristics
Parameter
Digital to Analog Converters
Conditions
AVdd Min Typ Max
Unit
Resolution
All
24
Bits
Dynamic Range¹: PCM to All Analog
Outputs
-60dB FS signal level
5V
90
95
4.75V 90
95
-
dB
3.3V 85
90
SNR² - DAC to All Line-Out Ports
5V
90
95
Analog Mixer Disabled, PCM data 4.75V 90
95
dB
3.3V 85
90
THD+N³ - DAC to All Line-Out Ports
Analog Mixer Disabled, -1dB FS
Signal, PCM data
5V
82
4.75V 80
3.3V 80
87
85
82
dB
THD+N3 - DAC to All Line-Out Ports
Analog Mixer Disabled,-3dB FS
Signal, PCM data
5V
80
4.75V 80
3.3V 80
83
83
83
dB
SNR2 - DAC to All Headphone Ports
Analog Mixer Disabled, 10KΩ load,
PCM data
5V
4.75V
3.3V
80
80
80
83
83
83
dB
THD+N3 - DAC to All Headphone Ports
Analog Mixer Disabled, -1dB FS
Signal, 10KΩ load, PCM data
5V
80
4.75V 80
3.3V 80
82
81
82
dB
THD+N3 - DAC to All Headphone Ports
Analog Mixer Disabled, -3dB FS
Signal, 10KΩ load, PCM data
5V
80
4.75V 80
3.3V 80
83
83
83
dB
SNR2 - DAC to All Headphone Ports
Analog Mixer Disabled, 32Ω load,
PCM data
5V
4.75V
3.3V
90
90
85
95
95
90
dB
THD+N3 - DAC to All Headphone Ports
Analog Mixer Disabled, -1dB FS
Signal, 32Ω load, PCM data
5V
65
4.75V 65
3.3V 65
70
70
70
dB
THD+N3 - DAC to All Headphone Ports
Analog Mixer Disabled, -3dB FS
Signal, 32Ω load, PCM data
5V
65
4.75V 65
3.3V 65
70
70
70
dB
IDT™ CONFIDENTIAL AND PROPRIETARY
27
4-CHANNEL HD AUDIO CODEC OPTIMIZED FOR LOW POWER
92HD71B7
V 0.9 07/07