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U4074B |
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| Part Number | U4074B |
| Manufacturer | TEMIC Semiconductors |
| Description | The U4074B is a monolithic integrated circuit that contains all integral components of a ringing circuit for telephone sets used in conjunction with a microcomputer. The combination of a microcomputer... |
| Features |
D Suitable for specifications FTZ 1TR2 and ETR 2 D Rectifier bridge D Z-diode D Amplitude detection D Supply voltage for microcomputer 3.5 @ D DC operation possible D Bridge push-pull output stage
22 mF V B 2(3) TH 130 kW 3(4) VDD 10 (12) 2f 4(5) 47mF
D CMOS-compatible microcomputer interface D 2-bit log. volume adjustment D High-voltage bipolar technology, 30 V
v 1.5 mA
Benefits
D mC controlled melody and volume D Low number of external components
On/Off a 0.8mF (1)1 a
2.2 kW Ringing signal b (16)14 b
Ȁ
+V B 12(14) O2
Control
VRef
Ȁ
2f Decoder and DA converter +V B PIEZO O1 Transdu... |
| Document |
 U4074B Data Sheet
PDF 99.33KB |
| Distributor | Stock | Price | Buy |
|---|
| No. | Partie # | Fabricant | Description | Fiche Technique |
|---|---|---|---|---|
| 1 | U4070B-FP |
TEMIC Semiconductors |
Tone Ringer Interface |
|
| 2 | U4076B |
TEMIC Semiconductors |
Three-Tone Ringer for Telephone Sets |
|
| 3 | U4076B-FL |
TEMIC Semiconductors |
Three-Tone Ringer for Telephone Sets |
|
| 4 | U401 |
Calogic LLC |
Dual N-Channel JFET Switch |
|
| 5 | U401 |
Siliconix |
N-Channel JFETs |
|