FEDL2201-01

1Semiconductor

ML2201–XXX

18/20

NOTES ON USAGE

Type of the Built-in D/A Converter

ML2201 has the built-in current-output type D/A converter and thus the design of analog output circuit is different

from the one with a voltage-output type D/A converter (e.g. MSM6650 family).

ML2201’s D/A converter is designed as current attraction type with the same circuit configuration with the one

used on MSM9831. So, the analog output circuit is different from MSM9800 family that uses a current discharge

type D/A converter. (See the table below)

Product

D/A Converter Type

D/A Converter Output Circuit

ML2201

Current Output

N-MOS Open Drain

MSM9831

Current Output

N-MOS Open Drain

MSM9800 Family

Current Output

P-MOS Open Drain

MSM6650 Family

Voltage Output

—

A sample circuit of connecting ML2201 and an amplifier chip

D/A Converter

V

DD

GND

AOUT

ML2201

A resistor for converting current to voltage

AMP

Direction of flowing current

A sample circuit of connecting MSM9800 family and an amplifier chip

D/A Converter

V

DD

GND

AOUT

MSM9800 Family

A resistor for converting current to voltage

AMP

Direction of flowing current