ST70136G 데이터 시트보기 (PDF) - STMicroelectronics

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ST70136G

CPE ADSL ANALOG FRONT END

STMicroelectronics 

Figure 8 : Tone Detector Schematic

ST70136

VDDA6

TOP (PAD)

ACTD

(PAD)

G

VDDA6

TON (PAD)

All cells are supplied with VDD except ESD diodes

Table 11 : Tone DetectorSpecifications

Description

Zin listening mode

Zin normal mode

Minimum differential input signal

Maximum diffential input signal

VCM input

Minimum

3.5

350

15

Typical

5

500

Maximum

6.5

650

VDD/2

VDD

Unit

Comments

kΩ

Diffferential

kΩ

Diffferential

µVp

Peak to peak

In listening mode

In listening mode

5.5 - VCXO

Unless otherwise noted, typical specifications apply for AVdd = 5.0V, DVdd = 3.3V, temperature = 27°C.

A voltage controlled crystal oscillator is integrated in ST70136. Its nominal frequency is 35.328MHz. The

quartz crystal is connected between XTALI and XTALO pins.

Figure 9 : DAC VCXO Schematic

IVCO (PAD)

VCO<7:0>

(from internal

register)

DIGITAL

ANALOG

VREF

VCOCAP(PAD)

PMOS

VCXOUT

(PAD)

17/24

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