ML7041 데이터 시트보기 (PDF) - Unspecified

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ML7041

Audio CODEC

Unspecified 

FEDL7041-05

ML7041

AC Characteristics (DTMF and Other Tones)

(VDD = 2.4 to 3.3 V, Ta = –40 to +85C)

Parameter

Symbol

Condition

Min. Typ. Max. Unit

Frequency Difference

DFT DTMF Tones, Other Tones

–1.5

VTL

Transmit tones DTMF (Low) and

(gain setting of Other Tones

–18

Original (reference) Tones Signal VTH

0 dB)

DTMF (High)

–16

Level *5

VRL Receive tones DTMF (Low)

–4

VRH

(gain setting of DTMF (High) and

–6 dB) Other Tones

–2

— +1.5 %

–16 –14 dBm0

–14 –12 dBm0

–2

0 dBm0

0

+2 dBm0

Relative Level of DTMF Tones RDTMF VTH/VTL, VRH/VRL

+1

+2

+3

dB

*5 Not including programmable gain set values

AC Characteristics (Programmable Gain Stages)

(VDD = 2.4 to 3.3 V, Ta = –40 to +85C)

Parameter

Symbol

Condition

Min. Typ. Max. Unit

Gain Accuracy

DG

All gain stages, to programmed

value

–1

0

+1

dB

AC Characteristics (Voice Detect Function)

Parameter

Symbol

Condition

(VDD = 2.4 to 3.3 V, Ta = –40 to +85C)

Min. Typ. Max. Unit

Voice Detection Time

Voice Detection Accuracy

TVON

Silence  Voice

—

5

—

ms

TVOF (Voice/silence differential: 10 dB) 140

160

180 ms

DVX

For detection level set values by

CR6-B6

–2.5

0

2.5

dB

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