PBL38650/2, PBL38650/2 R2, PBL38650/2R2 Selling Leads, Datasheet
MFG:PLCC Package Cooled:PLCC28 D/C:04+
PBL38650/2, PBL38650/2 R2, PBL38650/2R2 Datasheet download
Part Number: PBL38650/2
MFG: PLCC
Package Cooled: PLCC28
D/C: 04+
PBL38650/2, PBL38650/2 R2, PBL38650/2R2
- Table of contents:
Info of PBL38650/2
Info of PBL38650/2 R2
Info of PBL38650/2R2
Attentive hint
Want to post a buying lead? If you are not a member yet, please select the specific/related part number first and then fill the quantity and your contact details in the "Request for Quotation Form" on the left, and then click "Send RFQ".Your buying lead can then be posted, and the reliable suppliers will quote via our online message system or other channels soon.
Top Sellers:
TOP
About PBL04
PDF/DataSheet Download
Datasheet: PBL04
File Size: 56501 KB
Manufacturer:
Download : Click here to Download
About PBL04
PDF/DataSheet Download
Datasheet: PBL04
File Size: 56501 KB
Manufacturer:
Download : Click here to Download
About PBL04
PDF/DataSheet Download
Datasheet: PBL04
File Size: 56501 KB
Manufacturer:
Download : Click here to Download
PBL38650/2 General Description
The PBL 386 50/2 Subscriber Line Interface Circuit (SLIC) is a 90 V bipolar integrated circuit for use in Central Office Metering applications and other telecommunications equipment. The PBL 386 50/2 has been optimized for low total line interface cost and a high degree of flexibility in different applications.
The PBL 386 50/2 emulates resistive loop feed, programmable between 2x50 and 2x900 , with short loop current limiting adjustable to max 45 mA. In the current limited region the loop feed is nearly constant current with a slight slope corresponding to 2x30k.
A second, lower battery voltage may be connected to the device to reduce short loop power dissipation. The SLIC automatically switches between the two battery supply voltages without need for external components or external control.
The SLIC incorporates loop current, ground key and ring trip detection functions.
The PBL 386 50/2 is compatible with both loop and ground start signaling.
Two- to four-wire and four- to two-wire voice frequency (VF) signal conversion is accomplished by the SLIC in conjunction with either a conventional CODEC/filter or with a programmable CODEC/filter, e.g. SLAC, SiCoFi, Combo II. The programmable two-wire impedance, complex or real, is set by a simple external network.
Longitudinal voltages are suppressed by a feedback loop in the SLIC and the longitudinal balance specifications meet Bellcore TR909 requirements.
The PBL 386 50/2 package options are 24-pin SSOP, 24-pin SOIC or 28-pin PLCC.
PBL38650/2 Maximum Ratings
| Parameter | Symbol | Min. | Max | Unit |
| Temperature, Humidity | ||||
| Storage temperature range | TStg | -55 | +150 | |
| Operating temperature range | TAmb | -40 | +110 | |
| Operating junction temperature range, Note 1 | TJ | -40 | +140 |
PBL38650/2 Features
• 24-pin SSOP package
• Programmable two-wire signal headroom for 2.2 Vrms metering
• High and low battery with automatic switching
• Only +5 V feed in addition to battery
• Selectable transmit gain (0.5x or 0.25x)
• 70 mW on-hook power dissipation in active state
• On-hook transmission
• Long loop battery feed tracks Vbat for maximum line voltage
• No power-up sequence
• 43V open loop voltage @ -48V battery feed
• Constant loop voltage for line leakage <5 mA (RLeak ~ >10 k @ -48V)
• Full longitudinal current capability during on-hook state
• Analog over temperature protection permits transmission while the protection circuit is active
• Line voltage measurement
• Polarity reversal
• Ground key detector
• Tip open state with ring ground detector
• Programmable two-wire signal headroom for 2.2 Vrms metering
• High and low battery with automatic switching
• Only +5 V feed in addition to battery
• Selectable transmit gain (0.5x or 0.25x)
• 70 mW on-hook power dissipation in active state
• On-hook transmission
• Long loop battery feed tracks Vbat for maximum line voltage
• No power-up sequence
• 43V open loop voltage @ -48V battery feed
• Constant loop voltage for line leakage <5 mA (RLeak ~ >10 k @ -48V)
• Full longitudinal current capability during on-hook state
• Analog over temperature protection permits transmission while the protection circuit is active
• Line voltage measurement
• Polarity reversal
• Ground key detector
• Tip open state with ring ground detector
PBL38650/2 Connection Diagram
MT58L64L18CT-10
Price: 4-6 USD
MT58L64L18CT-10 TQFP100
DL-7140-211M
Price: 5-6.5 USD
DL-7140-211M laser tube
74LVC74APG
Price: 4-5 USD
74LVC74APG - IC FLIP FLOP D-Type POS-EDG DUAL 14TSSOP
CY28346ZI-2
Price: 6.5-8 USD
CYPRESS - Clock Synthesizer with Differential CPU Outputs
PI5V330QEX
Price: 0.284-0.286 USD
PI5V330QEX Pericom Multiplexer Switch ICs
BSM300GA120DN2
Price: 1-2 USD
IGBT power module, Single switch, 1200 V, Collector-emitter voltage, 430A
SVA150XG04TB
Price: 1-2 USD
a-Si TFT-LCD, NEC, 228.096Hmm, 560V
PC354N1
Price: 0.124-0.2 USD
PC354N1T - Mini-flat Package, AC Input Type Photocoupler - Sharp Electrionic Components
RL1210JR-070R22L
Price: 0.177-0.178 USD
RL1210JR51-XX-BL - Thick Film Chip Resistor Low Ohmic - TAITRON Components Incorporated
STPS140A
Price: 0.053-0.055 USD
STPS140A - POWER SCHOTTKY RECTIFIER - STMicroelectronics
STA013
Price: 1.45-1.5 USD
STA013 - MPEG 2.5 LAYER III AUDIO DECODER - STMicroelectronics
SMBJ5347B
Price: 0.073-0.075 USD
SMBJ5347B - 5 Watt Surface Mount Silicon Zener Diodes - Micro Commercial Components
