CX28333-1X 参数 Datasheet PDF下载

CX28331/CX28332/CX28333

Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit

2.0 Functional Description

2.8 DC Characteristics

2.8 DC Characteristics

Table 2-5. DC Characteristics

Parameter

V

ih

high threshold

V

il

low threshold

V

oh

high threshold

V

ol

low threshold

I

LEAK

Input capacitance

Load capacitance

NOTE(S):

Conditions

Digital inputs

Digital inputs

Digital outputs, I

oh

= –4 mA

Digital outputs, I

ol

= 4 mA

0 V

≤

digital Vin

≤

VGG

—

Digital outputs

Min

2.0

–0.3

2.4

—

–10

—

—

Nom

—

—

—

—

—

—

—

Max

VGG + 0.3

0.8

—

0.4

200

10

15

Unit

V

V

V

V

µA

pF

pF

1. The digital inputs of CX2833i are TTL 5 V compliant. These inputs are diode protected to DVDDIO and DVSSIO pins.

Additionally, all of the CX2833i digital inputs contain 75 k

Ω

pull-down resistors.

2. The digital outputs of CX2833i are also TTL 5 V compliant. However, these outputs will not drive to 5 V, nor will they accept

5 V external pull-ups. The output is DVDDC (3.3 V).

100985A

Conexant

2-21