TSH511

7/18

ELECTRICAL CHARACTERISTICS

Vcc = 2.7V, Tamb = 25°C, faudio = 1 kHz, fcarrier = 2.8 MHz, frequency deviation = +/-75 kHz (unless

otherwise specified)

Symbol

Parameter

Test condition

Min

Typ

Max

Unit

Overall Circuit (refering to typical application schematic, without reject filters)

Current consumption,

RX1 is on, RX2 is on.

SBY1 = ’Low’,

SBY2 = X

(X = don’t care)

15

18

mA

Current consumption

RX1 is on, RX2 is off

RX1 audio buffer is on

RX2 audio buffer is on

SBY1 = ’High’,

SBY2 = ’Low’

11

13

mA

Current consumption

RX1 is on, RX2 is off

RX1 audio buffer is on,

RX2 audio buffer is off

SBY1 = ’High’,

SBY2 = ’High’

9.5

11.5

mA

MAUS

Maximum Usable Average Sensitivity

audio BW=30 kHz

audio BW=30 kHz

4

19

Output audio signal to noise ratio

psophometric filter

58

dB

Input limiting voltage

output S/N reduced by

3dB, in BW = 30kHz

output S/N reduced by

3dB, psophometric filter

80

60

THD

Total Harmonic Distortion

psophometric filter

0.6

%

Low Noise Amplifier (LNA) Section

LNA voltage gain

ZL= 2 k

Ω,

18

22

28

dB

-3dB LNA Bandwidth

ZL = 2 k

Ω

20

MHz

Equivalent input noise voltage

Rs = 0

Ω

3.4

nV/

√Hz

Equivalent input noise current

Rs = 0

Ω

0.6

pA/

√Hz

Input impedance definied as

30

2

k

Ω

pF

200

Ω

ZL= 2 k

Ω

ZL= 2 k

Ω, f

127

95

Input 3rd order interception point

ZL= 2 k

Ω

ZL= 2 k

Ω, f

30

22