CS5321 datasheet(4/38 Pages) CIRRUS

4 / 38 page

CS5320/21/22

DS454PP1

1. CHARACTERISTICS AND SPECIFICATIONS

CS5320 AND CS5321 ANALOG CHARACTERISTICS (T

A = (See Note 1); Vss1, Vss2 = -5V;

Vdd1, Vdd2 = +5V; VD+ = 5V; AGND = DGND = 0V; HBR = Vdd LPWR = 0, MCLK = 1.024 MHz; Device connected as

shown in Figure 20, CS5322 used for filtering; Logic 1 = VD+, Logic 0 = 0V; unless otherwise specified.)

Notes: 1. CS5320-KL and CS5322-KL are guaranteed from 0o to 70o C. CS5322-BL is guaranteed from -40o to

+85o C. CS5321-BL is guaranteed from -55o to +85o C.

2. fO = CS5322 output word rate. Refer to “CS5322 FILTER CHARACTERISTICS” on page 8 for details

on the FIR Filter.

3. Characterized with full scale input signal of 50 Hz; fo = 500 Hz.

4. Characterized with input signals of 30 Hz and 50 Hz, each 6 dB down from full scale with fo = 1000 Hz.

5. Specification is for the parameter over the specified temperature range and is for the CS5320/21 device

only (VREF = +4.5 V). It does not include the effects of external components; OFST = 0.

6. Drift specifications are guaranteed by design and/or characterization.

7. The offset after calibration specification applies to the effective offset voltage for a

±4.5 volt input to the

CS5320/21 modulator, but is relative to the output digital codes from the CS5322 after ORCAL and

USEOR have been made active.

8. The CS5322 offset calibration is performed digitally and includes

± full scale (±4.5 volts into

CS5320/21). Calibration of offsets greater than

±5% of full scale will begin to subtract from the dynamic

range.

Parameter*

CS5320

CS5321

Symbol

Min

Typ

Max

Min

Typ

Max

Unit

Dynamic Performance

Dynamic Range

(Note 2)

HBR = 1

fO = 4000 Hz

OFST = 1

fO = 2000 Hz

fO = 1000 Hz

fO = 500 Hz

fO = 250 Hz

fO = 125 Hz

fO = 62.5 Hz

HBR = 0

fO = 4000 Hz

OFST = 1

fO = 2000 Hz

fO = 1000 Hz

fO = 500 Hz

fO = 250 Hz

fO = 125 Hz

fO = 62.5 Hz

113

103

118

121

124

127

129

130

115

118

121

124

126

127

116

103

118

121

124

127

129

130

115

118

121

124

126

127

Signal-to-Distortion

(Note 3)

HBR = 1

HBR = 0

SDR

100

110

120

100

110

115

120

Intermodulation Distortion

(Note 4)

IMD

105

110

dc Accuracy

Full Scale Error

(Note 5)

FSE

Full Scale Drift

(Note 5,6)

TCFS

-5

ppm/°C

Offset

(Note 5)

VZSE

-10

Offset after Calibration

(Note 7)

±100

µV

Offset Calibration Range

(Note 8)

100

%F.S.

Offset Drift

(Note 5,6)

TCZSE

-60

µV/°C

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