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ELECTRICAL CHARACTERISTICS (continued)

PCM1850A

PCM1851A

SLES173 – MARCH 2006

All specifications at T

otherwise noted)

PCM1850APJT, PCM1851APJT

PARAMETER

TEST CONDITIONS

UNIT

MIN

TYP

MAX

INPUT LOGIC

2

0

0.8

Input logic level

VDC

2

5.5

0

0.8

±10

±10

Input logic current

µA

65

100

±10

OUTPUT LOGIC

2.8

Output logic level

VDC

0.5

AFE MULTPLEXER

Input channels

6

Input level for full scale

2

2.4

Vrms

Selected channel

V

Unselected channel

V

Selected channel

50

169

Input impedance

k

Ω

Unselected channel

50

57

AFE PGA

Gain range

–11

0

11

dB

Gain step

0.5

dB

Monotonicity

Specified

Antialiasing filter frequency

300

kHz

–3 dB, PGA gain = –5.5 dB

response

MONITOR OUTPUT

Output level for full scale

AC-coupled, >10 k

Ω

Vp-p

Output load

AC-coupled

10

k

Ω

AC-coupled, 10 k

Ω, 3 Vp-p output

0.0016%

S/N

AC-coupled, 10 k

Ω

104

dB

AC-coupled, 10 k

Ω

–3

% of FSR

Center voltage

V

ADC

Resolution

24

bits

Full-scale input voltage

Vp-p

(1)

Pins 1, 2: LRCK, BCK (In slave mode, Schmitt-trigger input, with 50-k

Ω typical pulldown resistor)

(2)

Pins 7, 31, 32: SCKI, MC/SCL (PCM1850A/1851A), MD/SDA (PCM1850A/1851A) (Schmitt-trigger input, 5-V tolerant)

(3)

Pins 8–10, 30: TEST0, TEST1, RST, MS/ADR (PCM1850A/1851A) (Schmitt-trigger input, with 50-k

Ω typical pulldown resistor, 5-V

tolerant)

(4)

Pins 1–4: LRCK, BCK (in master mode), DOUT, OVER

(5)

Pin 32: SDA (PCM1851A) (open-drain LOW output)

(6)

Analog performance specifications are tested with the System Two™ audio measurement system by Audio Precision™, using a 400-Hz

(7)

6

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