Preliminary Information

MH88422

2-19

†

Electrical Characteristics are over Recommended Operating Conditions unless otherwise stated.

‡Typical figures are at 25

°C with nominal +5V and are for design aid only.

Note 1: All of the above test conditions use a test source impedance which matches the device’s impedance.

Note 2: dBm is referenced to 600

Ω unless otherwise stated.

Characteristics

Sym

Min

Max

Units

Test Conditions

1

Input Impedance VR

47k

Ω

2

Output Impedance at VX

10

Ω

3

Receive Gain (VR to 2-Wire)

2.5

3.5

4.6

dB

Test circuit as Fig 6

Input 0.5V at 1kHz

4

Frequency Response Gain

(relative to Gain @ 1kHz)

All Variants

-1

-1

0

0

+1

+1

dB

dB

300Hz

3400Hz

5

Signal Output Overload Level

at 2-Wire

at Vx

+2.0

+2.0

+3.0

+3.0

dBm

dBm

THD < 5% @ 1kHz

6

Total Harmonic Distortion

BD-1 Variant

at 2-Wire

All other Variants

at 2-Wire

All Variants

at VX

THD

1.2

1.2

1.2

2.0

2.5

2.0

%

%

%

Input -3.5dBm at 1kHz

7

Power Supply Rejection Ratio

BD-1 Variant

at 2-Wire

at VX

All other Variants

at 2-Wire

at VX

PSRR

18

18

12

12

40

40

20

20

dB

dB

dB

dB

Ripple 0.1Vrms 1kHz

8

Transhybrid Loss

THL

6

20

dB

Test circuit as Fig 6

Input -3.5dBm,