ad1843jst Analog Devices, Inc., ad1843jst Datasheet - Page 4

• Manufacturer Part Number: ad1843jst
• Description: Serial-port 16-bit Soundcomm Codec
• Manufacturer: Analog Devices, Inc.

AD1843
DAC1 DIGITAL-TO-ANALOG CONVERTERS
Audio Dynamic Range (–60 dB Input, THD+N Referenced to Full Scale,
Audio THD+N (Referenced to Full Scale, DA1FLT = 0)
Audio Signal-to-Intermodulation Distortion* (CCIF Method)
Interchannel Gain Mismatch (Difference of Gain Errors)
DAC Crosstalk* (Input L, Zero R, Measure LOUT1R; Input R, Zero L,
Total Out-of-Band Energy*
Audible Out-of-Band Energy*
DAC2 DIGITAL-TO-ANALOG CONVERTERS
Audio Dynamic Range (–60 dB Input, THD+N Referenced to Full Scale,
Modem Dynamic Range (–60 dB Input, THD+N Referenced to Full Scale,
Audio THD+N (Referenced to Full Scale, DA2FLT = 0)
Modem THD+N (–3.0 dB Referenced to Full Scale,
Audio Signal-to-Intermodulation Distortion* (CCIF Method)
Interchannel Gain Mismatch (Difference of Gain Errors)
DAC Crosstalk* (Input L, Zero R, Measure LOUT2R; Input R, Zero L,
Total Out-of-Band Energy*
Audible Out-of-Band Energy*
DC Offset
DAC1 AND DAC2 ANALOG AMPLIFIERS/ATTENUATORS
Step Size (+12.0 dB to –30.0 dB) (All Steps Tested)
Step Size (–31.5 dB to –34.5 dB) (All Steps Tested)
Step Size (–36.0 dB to –82.5 dB)*
Output Attenuation Span*
Mute Attenuation*
DIGITAL MIX ATTENUATORS
Step Size (0 dB to –94.5 dB)* (All Steps Tested)
Output Attenuation Span*
Mute Attenuation*
A-Weighted, DA1FLT = 0)
Measure LOUT1L)
(Measured from 0.6 F
Tested at F
A-Weighted, DA2FLT = 0)
300 Hz to 4 kHz Analog Output Passband, DA2FLT = 1, RDA2G5:0
300 Hz to 4 kHz Analog Output Passband, DA2FLT = 1, RDA2G5:0
Measure LOUT2L)
(Measured from 0.6 F
(Measured from 0.6 F
Tested at F
(Measured from 0.6
& LDA2G5:0 = 000101 [4.5 dB], F
& LDA2G5:0 = 000101 [4.5 dB], F
S
S
= 8.0 kHz)
= 8.0 kHz)
F
S
S
S
S
to 22 kHz in Audio Mode,
to 100 kHz in Audio Mode)
to 22 kHz in Audio Mode,
to 100 kHz in Audio Mode)
S
S
= 12.8 kHz)
= 12.8 kHz)
–4–
Min
77
Min
78
87
Min
1.25
1.1
1.3
81.5
Min
1.3
93.5
Typ
80
–74
–92
Typ
80
90
–77
–81
–86
5
Typ
1.5
1.5
1.5
82.5
–80
Typ
1.5
94.5
–90
Max
0.03
–70
–80
–77
–60
–72
Max
0.03
–70
0.016
–76
–80
–80
–60
–72
25
Max
1.75
1.9
1.7
83.5
Max
1.7
95.5
0.5
0.5
Units
dB
%
dB
dB
dB
dB
dB
dB
Units
dB
dB
%
dB
%
dB
dB
dB
dB
dB
dB
mV
Units
dB
dB
dB
dB
dB
Units
dB
dB
dB
REV. 0