SC14CVMDECT datasheet(39/57 Pages) DIALOG

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Datasheet

Revision 3.0

28-Jul-2015

CFR0011-120-00-FM Rev 5

39 of 57

SC14CVMDECT SF

Cordless Voice Module

FINAL

Note 30: 0 dBm0 on CIN = -3.14 dB of max PCM value.

Table 26: VREFp load circuit

PARAMETER

DESCRIPTION

CONDITIONS

MIN

TYP

MAX

UNIT

Cload_vrefp

VREFp (parasitic) load

capacitance

Iout_vrefp

VREFp output current

1mA

Figure 29: VREFp load circuit

Cload_vrefp

VREFp

VREFm

Iout_vrefp

Rout_vrefp

Table 27: LSRp/LSRn outputs

PARAMETER

DESCRIPTION

CONDITIONS

MIN

TYP

MAX

UNIT

Vlsr_0dB_unt

Untrimmed differen-

tial RMS output volt-

age between LSRp

and LSRn in audio

mode (0 dBm0 refer-

ence level)

0 dBm0 on CIN (Note 30),

LSRATT[2:0] = 001,

@ 1020 Hz Load circuit A (see

Figure 30, Table 28) with RL1=

 , Cp1 or load circuit B (see

Figure 31) with RL2, Cp2 and

Cs2

Tolerance:

• 13% when untrimmed

(BANDGAP_REG=8)

• 6% when trimmed

(Note 28)

621

714

807

Rout_lsr

Resistance of acti-

vated loudspeaker

amplifier outputs

LSRp and LSRn



Vlsr_dc

DC offset between

LSRp and LSRn

(Note 17)

LSRATT[2:0] = 3

RL1 = 28 

3 sigma deviation limits

-20

Table 28: LSRp/LSRn load circuits

PARAMETER

DESCRIPTION

CONDITIONS

MIN

TYP

MAX

UNIT

Cp1_Rl1_inf

Load capacitance

see Figure 30, RL1 = 

Cp1_Rl1_1k

Load capacitance

see Figure 30, RL1 1 k

100

Rl1

Load resistance



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