Electrical Characteristics

TS4851

7/28

4 Electrical Characteristics

Table 8.

Electrical characteristics at VCC = +5V, GND = 0V, Tamb = 25°C (unless otherwise

specified)

Symbol

Parameter

Min.

Typ.

Max.

Unit

Supply Current

Output Mode 7, Vin = 0V, no load

All other output modes, Vin = 0V, no load

8

4.5

11

6.5

mA

Standby Current

Output Mode 0

0.1

2

µA

Voo

Output Offset Voltage (differential)

Vin = 0V

5

50

mV

Vil

“Logic low” input Voltage

0

0.4

V

Vih

“Logic high” input Voltage

1.4

5

V

Po

Output Power

SPKERout, RL = 8

Ω, THD = 1%, F = 1kHz

Rout & Lout, RL = 32

Ω, THD = 0.5%, F = 1kHz

800

80

1000

120

mW

THD + N

Total Harmonic Distortion + Noise

Rout & Lout, Po = 80mW, F = 1kHz, RL = 32

Ω

SPKERout, Po = 800mW, F = 1kHz, RL = 8

Ω

Rout & Lout, Po = 50mW, 20Hz < F < 20kHz, RL = 32

Ω

SPKERout, Po = 40mW, 20Hz < F < 20kHz, RL = 8

Ω

0.5

1

0.5

1

%

SNR

Signal To Noise Ratio (A-Weighted)

90

dB

PSRR

Vripple = 200mV Vpp, F = 217Hz, Input(s) Terminated 10

Ω

Ouput Mode 1

Ouput Mode 2

Ouput Mode 3 (G=+12dB)

Ouput Mode 4 (G=+12dB)

Ouput Mode 5 (G=+12dB)

Ouput Mode 6, 7 (G=+12dB)

1)

Dynamic measurements [20 x log(rms(Vout)/rms(Vripple)]. Vripple is the superimposed sinus signal to Vcc @ F = 217Hz

70

70

55

57

52

56

dB

G

Digital Gain Range - Rin & Lin

no load

-34.5

+12

dB

Digital gain stepsize

1.5

dB

Stepsize

G

≥ -22.5dB

G < -22.5dB

-0.5

-1

+0.5

+1

dB

Phone In Gain, no load

BTL gain from Phone In to SPKERout

BTL gain from Phone In to Rout & Lout

6

0

dB

Zin

Phone In Input Impedance

15

20

25

k

Ω

Zin

Rin & Lin Input Impedance (all gain setting)

37.5

50

62.5

k

Ω

tes

Enable Stepup Time - ENB

20

ns

teh

Enable Hold Time - ENB

20

ns

tel

Enable Low Time - ENB

30

ns

tds

Data Setup Time- DATA

20

ns

tdh

Data Hold Time - DATA

20

ns

tcs

Clock Setup time - CLK

20

ns

tch

Clock Logic High Time - CLK

50

ns

tcl

Clock Logic Low Time - CLK

50

ns

fclk

Clock Frequency - CLK

DC

10

MHz