M21234 datasheet(13/20 Pages) MA-COM

13 / 20 page

Pinout Diagram, Pin Descriptions, and Package Outline Drawing

21234-DSH-001-B

Mindspeed Technologies

Mindspeed Proprietary and Confidential

SD/MUTE

I/O

Bidirectional Signal that can be used as an input control signal

or as an output status indicator.

When configured as an input by forcing a voltage on SD/

MUTE = High (Vdd), the output of the M21234 will be

inhibited at logic low (outputs muted).

When SD/MUTE = Low (Vss), the output is never muted and the

programmable cable length based mute function is disabled.

When configured as an output (tied to a high-impedance

input) or left floating, the programmable inhibit based on

cable length is enabled

Configured as Output:

Low = Vss = Input signal detect

High = Vdd = Loss of signal

Configured as Input:

Low = Vss = Never mute

High = Vdd = Force Mute

CLEN

Analog

Cable length Indicator output

31, 32

N/A

Do not connect to the pin.

N/A

Notes:

Internal pull-up/pull-down is 100 k

Table 2-3.

Control/Interface Pins

Pin Name

Pin Number(s)

Type

Function

Default

M21234 Datasheet(PDF) 13 Page - M/A-COM Technology Solutions, Inc.