92HD91 Datasheet, PDF (46/298 Pages) Integrated Device Technology – SINGLE CHIP PC AUDIO SYSTEM

92HD91
SINGLE CHIP PC AUDIO SYSTEM, CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO
3.2. 92HD91 Analog Performance Characteristics (PRELIMINARY)
(T_ambient = 25 ºC, AVdd = 4.75V (4.5-5.25V) or 3.3V +/-5%, DVdd = 3.3V ± 5% or 1.8V± 10%, AVss=DVss=0V; 20Hz to
20KHz swept sinusoidal input; Sample Frequency = 48 kHz; 0dB FS = 1Vrms for AVdd = 4.75V and 0.71Vrms for AVdd
= 3.3V, 10KΩ//50pF load, Testbench Characterization BW: 20 Hz – 20 kHz, 0 dB settings on all gain stages)
Parameter
Conditions
Min Typ
Digital to Analog Converters
Resolution
24
Dynamic Range¹: PCM to All Analog
Outputs
-60dB FS signal level, Analog Mixer disabled
98
SNR² - DAC to All Line-Out Ports
Analog Mixer Disabled, PCM data
98
THD+N³ - DAC to All Line-Out Ports
Analog Mixer Disabled,-3dB FS Signal, PCM
data
89
SNR² - DAC to All Headphone Ports
Analog Mixer Disabled, 10K load, PCM data
98
THD+N³ - DAC to All Headphone Ports
Analog Mixer Disabled,-3dB FS Signal, 10K
load, PCM data
87
SNR² - DAC to All Headphone Ports
Analog Mixer Disabled, 32 load, PCM data
98
THD+N³ - DAC to All Headphone Ports
Analog Mixer Disabled, -3dB FS Signal, 32
load, PCM data
73
Any Analog Input (ADC) to DAC Crosstalk 10KHz Signal Frequency. 0dBV signal applied
to ADC, DACs idle, ports enabled as output.
-65
-
Any Analog Input (ADC) to DAC Crosstalk
1KHz Signal Frequency. see above
-65
-
DAC L/R crosstalk
DAC to LO or HP 20-15KHz into 10K load 70
73
DAC L/R crosstalk
DAC to HP 20-15KHz into 32 load
65
68
Gain Error
Analog Mixer Disabled
Interchannel Gain Mismatch
Analog Mixer Disabled
D/A Digital Filter Pass Band⁴
20
-
D/A Digital Filter Pass Band Ripple⁵
D/A Digital Filter Transition Band
21,000 -
D/A Digital Filter Stop Band
31,000 -
D/A Digital Filter Stop Band Rejection⁶
-100
-
D/A Out-of-Band Rejection⁷
-55
-
Group Delay (48KHz sample rate)
-
-
Attenuation, Gain Step Size DIGITAL
-
0.75
DAC Offset Voltage
-
10
Deviation from Linear Phase
-
1
Analog Outputs
Full Scale All Mono/Line-Outs
DAC PCM Data
1.00
-
Full Scale All Mono/Line-Outs
DAC PCM Data
2.83
-
Table 20. 92HD91 Analog Performance Characteristics
Max
-
-
0.5
0.5
21,000
0.125
31,000
-
-
-
1
-
20
10
-
-
Unit
Bits
dB
dB
dBr
dB
dBr
dB
dBr
dB
dB
dB
dB
dB
dB
Hz
+/- dB
Hz
Hz
dB
dB
ms
dB
mV
deg.
Vrms
Vp-p
IDT CONFIDENTIAL
46
©2009 INTEGRATED DEVICE TECHNOLOGY, INC.
V 1.2 1/12
92HD91