Functional Description

212x8-DSH-001-B

Mindspeed Technologies

®

4

Mindspeed Proprietary and Confidential

1.3.3

M21208/M21218 Pin List

Table 1-2.

Interface Pins

Pin Name

Function

Default

Type

SD/HD

(M21218 only)

Input control signal to change the output slew rate.

SD/HD = High: Slow output slew rate for SD-SDI rate (143–540 Mbps).

SD/HD = Low: Fast output slew rate for HD-SDI rate (1485 Mbps) [Default].

Pull-up

I—CMOS

RSET

Input control signal for setting the single-ended output swing amplitude.

Terminal floating results in 800 mVpp ± 15% swing.

Higher output swing levels or reduced variations with a ±1% tolerance external

resistor.

For 800 mVpp single-ended, a 750

Ω ±1% resistor to AV

recommended.

—

Analog Input

NOTE:

Internal pull-down is 100 k

Ω.

Table 1-3.

Power Pins

Pin Name

Function

Type

Chip Ground

Power

Positive Supply

Power

Table 1-4.

High-speed Signal Pins

Pin Name

Function

Default

Type

SDI/SDI

Non-inverting and Inverting serial unterminated inputs.

—

I—High-speed

SDO/SDO

Non-inverting and inverting serial unterminated data outputs to coaxial cable.

—

O—High-speed