HV461FG Supertex, HV461FG Datasheet - Page 8

• Manufacturer Part Number: HV461FG
• Description: Telephone Ringers Controller IC
• Manufacturer: Supertex

Specifications of HV461FG

• Function: Telecom Ringer
• Mounting Style: SMD/SMT
• Operating Supply Voltage: 7 V
• Product: Telecom Ringer
• Package / Case: TQFP-48
• Frequency: 12 Hz, 16.66 Hz, 20 Hz
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Primary Target Application: Generator Circuit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Figure 3: ENABLE and SYNC Timing - SYNCMODE = 1
Figure 4: AMP Timing
Typical Application
Figures 5 and 6 on pages 9 and 10 show the schematic of a
typical 15 REN ring generator application. The basic design
SINE REF
SINE REF
ENABLE
Filtered
ErrAmp
SYNC
SYNC
AMP
AMP 00
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1235 Bordeaux Drive, Sunnyvale, CA 94089
t
t
ON(delay)
SYNC(delay)
SYNC(ON)
SYNC(ON)
AMP 00
8
equations for elements connected to different pins are given
in the Pin Descriptions Table beginning on page 11.
Free
AMP 00
sync'd to zero crossings
amplitude changes
●
Tel: [phone]
SYNC(OFF)
sync at 0º or 180º
AMP 00
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www.supertex.com
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HV461