AD1888JCP-REEL Analog Devices Inc, AD1888JCP-REEL Datasheet - Page 19

• Manufacturer Part Number: AD1888JCP-REEL
• Description: IC CODEC AUDIO-PC AC'97 48LFCSP
• Manufacturer: Analog Devices Inc
• Series: SoundMAX®r
• Type: Audio Codec '97r

Specifications of AD1888JCP-REEL

• Data Interface: Serial
• Resolution (bits): 16, 20 b
• Number Of Adcs / Dacs: 2 / 6
• Sigma Delta: No
• Dynamic Range, Adcs / Dacs (db) Typ: 80 / 90
• Voltage - Supply, Analog: 4.75 V ~ 5.25 V
• Voltage - Supply, Digital: 3.15 V ~ 3.45 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 48-VFQFN, CSP Exposed Pad
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Table 27. Power-Down Control/Status Register (Index 26h)
Reg
No.
26h
The ready bits are read only; writing to REF, ANL, DAC, ADC will have no effect. These bits indicate the status for the AD1888 subsections. If the bit is a 1, then that
subsection is ready. Ready is defined as the subsection able to perform in its nominal state. All registers not shown and bits containing an X are assumed to be reserved.
ADC
DAC
ANL
REF
PR[6:0]
EAPD
Name
Power-Down
Control/Status
ADC Sections Ready to Transmit Data
DAC Sections Ready to Transmit Data
Analog Amplifiers, Attenuators, and Mixers Ready
Voltage References, V
Codec Power-Down Modes. The first three bits are to be used individually rather than in combination with each other. PR3 can be
used in combination with PR2 or by itself. The mixer and reference cannot be powered down via PR3 unless the ADCs and DACs
are also powered down. Nothing else can be powered up until the reference is up. PR5 has no effect unless all ADCs, DACs, and the
ac-link are powered down. The reference and the mixer can be either up or down, but all power-up sequences must be allowed to
run to completion before PR5 and PR4 are both set. In multiple codec systems, the master codec’s PR5 and PR4 bits control the
slave codec. PR5 is also effective in the slave codec if the master’s PR5 bit is clear, but the PR4 bit has no effect except to enable or
disable PR5.
External Audio Power-Down Control. Controls the state of the EAPD pin.
EAPD = 0 sets the EAPD pin low, enabling an external power amplifier (reset defaults).
EAPD = 1 sets the EAPD pin high, shutting off the external power amplifier.
D15
EAPD
REF
and V
D14
PR6
REFOUT
D13
PR5
, up to Nominal Level
D12
PR4
D11
PR3
Rev. A | Page 19 of 32
PR2
D10
D9
PR1
D8
PR0
D7
X
D6
X
D5
X
D4
X
D3
REF
D2
ANL
D1
DAC
D0
ADC
AD1888
Default
NA