5–4

5.3.6.3 DAC Signal-to-Distortion + Noise (see Note 6)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VI = –3 dB

73

78

Signal-to-total harmonic distortion + noise (THD + N)

VI = –9 dB

67

72

dB

VI = –40 dB

32

37

NOTE 6: The test condition is a 1020-Hz input signal with an 8-kHz conversion rate. The output configuration is in a 5 V differential-ended mode.

5.3.7

DAC Characteristics

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Dynamic range

VI = 0 dB at 1020 Hz

82

dB

Interchannel isolation

100

dB

EG

Gain error

VI = 0 dB at 1020 Hz

±0.5

dB

Idle channel narrow-band noise

0 kHz to 4 kHz (see Note 7)

75

125

µV rms

Channel delay

18/fs

s

VO

Analog output voltage, MONOUTP-MONOUTM (5.0 V)

Differential with respect to common

mode and full-scale digital input (see

Note 8)

–1.78

1.78

V

VO

Analog output voltage, MONOUTP-MONOUTM (3.3 V)

Differential with respect to common

mode and full-scale digital input (see

Note 8)

–1.2

1.2

V

VO

Analog output voltage (5 V)

Differential with respect to common

mode and full-scale digital input

–3

3

V

VO

Analog output voltage, (3.3 V)

Differential with respect to common

mode and full-scale digital input

–2

2

V

NOTES:

7. The conversion rate is 8 kHz.

8. This amplifier should only be used in differential mode. Common mode : 2.5 V in 5-V supply, 1.5 V in 3.3-V supply.

5.3.8

Logic DC Electrical Characteristics

PARAMETER

MIN

TYP

MAX

UNIT

VIL

Low-level input voltage

–0.3

0.8

V

VIH

High-level input voltage

2

DVDD+0.3

V

II(lkg)

Input leakage current

10

µA

IO(lkg)

Output leakage current

10

µA

VOH

High-level output voltage at rated load current

2.4

DVDD+0.5

V

VOL

Low-level output voltage at rated load current

DVSS–0.5

0.4

V

5.3.9

Power-Supply Rejection (see Note 9)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VDD1

Supply-voltage rejection ratio, ADC channel, DAVDD

fI = 0 to fs/2

73

VDD2

Supply-voltage rejection ratio, DAC channel, DAVDD

fI = 0 to fs/2

76

dB

VDD3

Supply-voltage rejection ratio, ADC channel, DVDD

fI = 0 to fs/2

86

dB

VDD4

Supply-voltage rejection ratio, DAC channel, DVDD

fI = 0 to 30 kHz

95

NOTE 9: Power supply rejection measurements are made with both the ADC and the DAC channels idle and a 200 mV peak-to-peak signal

applied to the appropriate supply.

5.3.10 Power-Supply

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

IDD (analog)

Codec power supply current, analog (including hybrid and

drivers)

Operating

25

mA

IDD (digital )

Codec power supply current, digital

Operating

5

mA