CS4218 datasheet(4/44 Pages) CIRRUS

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ANALOG CHARACTERISTICS (Continued)

Parameter *

Symbol

Min

Typ

Max

Units

Analog Output Characteristics - Minimum Attenuation; Unless Otherwise Specified.

DAC Resolution

Bits

DAC Differential Nonlinearity

(Note 1)

±0.9

LSB

Total Dynamic Range

TDR

Instantaneous Dynamic Range

IDR

Total Harmonic Distortion

(Note 4)

THD

0.02

Interchannel Isolation

(Note 4)

Interchannel Gain Mismatch

±0.5

Frequency Response

(Note 1)

-0.5

+0.2

Programmable Attenuation

(Note 5)

-46.5

Attenuation Step Size

(Note 5)

1.5

Absolute Attenuation Step Error

(Note 5)

0.75

Gain Drift

(Note 1)

100

ppm/

°C

REFBUF Output Voltage

(Note 6)

1.9

2.1

2.3

Maximum output current= 400

µA

Offset Voltage

(Note 7)

Full Scale Output Voltage

(Note 4)

2.4

2.7

3.1

Vpp

External Load Impedance

10k

Ω

Internal Resistor Value for LOUT and ROUT

400

600

800

Ω

Deviation from Linear Phase

(Note 1)

Degree

Out of Band Energy

(22 kHz to 100 kHz)

-60

Power Supply

Power Supply Current

(Note 8)

Operating (VD = 5.0V)

100

Operating (VD = 3.3V)

Power Down

Power Supply Rejection

(1 kHz)

Notes:

4. 10 k

Ω, 100 pF load.

5. Tested in SM3, Slave sub-mode, 256 BPF.

6. REFBUF load current must be DC. To drive dynamic loads, REFBUF must be buffered.

AC variations in REFBUF current may degrade ADC and DAC performance.

7. No DC load.

8. Typical current: VA = 30mA, VD = 50mA with VD = 5.0V. VA = 30mA, VD = 35mA with VD = 3.3V.

Power supply current does not include output loading.

* Parameter definitions are given at the end of this data sheet.

CS4218

DS135F1

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