AD1983JCPZ-REEL Analog Devices Inc, AD1983JCPZ-REEL Datasheet - Page 14

• Manufacturer Part Number: AD1983JCPZ-REEL
• Description: IC CODEC HD AUDIO 32-LFCSP
• Manufacturer: Analog Devices Inc
• Series: SoundMAX®r
• Type: Audio Codec, HDr

Specifications of AD1983JCPZ-REEL

• Data Interface: Serial
• Resolution (bits): 24 b
• Number Of Adcs / Dacs: 2 / 2
• Sigma Delta: No
• S/n Ratio, Adcs / Dacs (db) Typ: 85 / 85
• Dynamic Range, Adcs / Dacs (db) Typ: 85 / 90
• Voltage - Supply, Analog: 4.5 V ~ 5.5 V
• Voltage - Supply, Digital: 2.97 V ~ 3.63 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 32-VFQFN, CSP Exposed Pad
• Single Supply Voltage (typ): 3.3/5V
• Single Supply Voltage (min): 2.97/4.5V
• Single Supply Voltage (max): 3.63/5.5V
• Package Type: LFCSP EP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

AD1983
JACK PRESENCE DETECTION
The AD1983 uses one jack sense line for presence detection on
up to four external jacks. This enables software to determine if
there is a device plugged into a jack; then, the AD1983 sensing
engine can determine what type of device it is. Jack presence is
detected using a resistor tree arrangement outlined in the HD
Audio specification. Up to four jacks can be sensed on a single
sense line by using a different value resistor for each between
the sense line and ground (AV
open, isolated switches to use this method of jack presence
detection.
For proper operation there must be a 2.67 kΩ 1% resistor
connected between SENSE_A and AV
R1 and C1 should be installed; R2 should not be installed
(see Figure 3).
The specific resistor values for each jack are shown in Table 13.
To ensure accurate detection, use 1% tolerance resistors for all
jack presence circuitry.
SS
). Jacks must have normally-
SENSE_A/SRC_B
DD
AD1983
. For this configuration
SENSE_SRC
AV
AV
DD
SS
22, 26
9
21
17, 29
Figure 3. Jack Presence Detection
AV
R2 (DNE)
2.67kΩ, 1%, 1/8W
DD
R1
2.67kΩ, 1%, 1/8W
Rev. 0 | Page 14 of 16
Table 13. Jack Sense Mapping
Resistor (1%)
5.1 kΩ
10.0 kΩ
20.0 kΩ
39.2 kΩ
An alternate method reduces the current for sensing by
connecting a single 2.67 kΩ 1% resistor between the SENSE_A
and SENSE_SRC pins. For this configuration R1 and C1 are not
installed; however, R2 is installed (see Figure 3).
It is recommended that designers place circuitry for both
sensing methods and only install one of the two options.
C1
1µF
TO JACKS FOR
PORT A THROUGH PORT D
Name
Line Out
Line In
Microphone
Headphone Out
SENSE_A
Port
D
C
B
A
Node ID
(Hex)
05
09
08
06