ML7005MB datasheet(21/25 Pages) OKI

部品番号	ML7005MB

部品情報	DTMF Transceiver

PDF	25 Pages

Scroll/Zoom	100%

メーカー	OKI [OKI electronic componets]

ホームページ	http://www.oki.com

Logo

21 / 25 page

¡ Semiconductor

ML7005

21/24

Figure 11 Analog Output Level Adjustment

Concurrent Operation of 4 Functions

The DTMF signal generator, DTMF signal detector, call progress tone generator, and call

progress tone detector can operate concurrently.

When both the DTMF signal generator and call progress tone generator operate concurrently, the

DTMF signal sometimes cannot be detected if the receive level of the DTMF signal is less than

-36 dBm.

Adjusting the Analog Output Level

Adjust the analog output level according to the method shown in the figure 11.

RI/RH ≤ 1.6 is always required when VDD ≥ 4.5 V.

In the case of RI /RH > 1, if RI /RH = A, the maximum analog output load resistance is 20*A (kW).

If VDD is less than 4.5 V, RI/RH ≤ 1 is required.

–

DTAI (CPAI)

OUT

Gain =

DTGO (CPDGO)

DTAO (CPAO)

Generator

ML7005MB データシート(PDF) 21 Page - OKI electronic componets