ST70136B STMICROELECTRONICS [STMicroelectronics], ST70136B Datasheet - Page 17

• Manufacturer Part Number: ST70136B
• Description: CPE ADSL ANALOG FRONT END
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Figure 8 : Tone Detector Schematic
Table 11 : Tone DetectorSpecifications
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
Zin listening mode
Zin normal mode
Minimum differential input signal
Maximum diffential input signal
VCM input
VCO<7:0>
(from internal
register)
ACTD
(PAD)
Description
DIGITAL
All cells are supplied with VDD except ESD diodes
Minimum
VREF
350
3.5
15
ANALOG
Typical
VDD/2
500
5
G
Maximum
VDD
650
6.5
VCOCAP(PAD)
VDDA6
VDDA6
Unit
k
k
Vp
Diffferential
Diffferential
Peak to peak
In listening mode
In listening mode
TON (PAD)
IVCO (PAD)
TOP (PAD)
Comments
ST70136
VCXOUT
PMOS
(PAD)
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