AD1843JS Analog Devices Inc, AD1843JS Datasheet - Page 60

• Manufacturer Part Number: AD1843JS
• Description: IC CODEC STEREO 5V 16BIT 80PQFP
• Manufacturer: Analog Devices Inc
• Type: Stereo Audior

Specifications of AD1843JS

• Rohs Status: RoHS non-compliant
• Data Interface: Serial
• Resolution (bits): 16 b
• Number Of Adcs / Dacs: 1 / 2
• Sigma Delta: Yes
• S/n Ratio, Adcs / Dacs (db) Typ: 92 / 86
• Dynamic Range, Adcs / Dacs (db) Typ: 85 / 80
• Voltage - Supply, Analog: 4.75 V ~ 5.25 V
• Voltage - Supply, Digital: 2.85 V ~ 5.25 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 80-MQFP, 80-PQFP

AD1843
–100
–110
–100
–120
–140
–160
–180
Figure 37. AD1843 Modem Mode Frequency Response Plots (Full-Scale Line-Level Inputs, 0 dB Gain)
Based on 7.2 kHz sample rate; other sample rates will show slightly different behavior. See the
”Specifications” section for performance limits. The DAC plots do not reflect the additional beneficial
roll-off of the AD1843 analog filters. Out-of-band images will be attenuated by an additional 31.4 dB
at 100 kHz.
–10
–20
–30
–40
–50
–60
–70
–80
–90
–20
–40
–60
–80
0
0
0
0
4.8
0.8
b. DAC Modem 0–57.6 kHz
9.6
1.6
a. ADC Modem Full
14.4 19.2
2.4
24.0
3.2
kHz
28.8
kHz
4.0
33.6
4.8
38.4
43.2
5.6
48.0 52.8
6.4
7.2
–60–
–0.020
–0.040
–0.060
–0.080
–0.100
–0.120
–0.140
–0.160
–0.180
–0.200
–0.220
–0.240
–0.040
–0.080
–0.120
–0.160
–0.200
–0.240
0.080
0.040
0.020
0.000
0.040
0.000
0.2
0.2
c. ADC Modem Passband
d. DAC Modem Passband
0.6
0.6
1.0
1.0
1.4
1.4
kHz
kHz
1.8
1.8
2.2
2.2
2.6
2.6
3.0
3.0
REV. 0