DS21552L+ Maxim Integrated Products, DS21552L+ Datasheet - Page 91

• Manufacturer Part Number: DS21552L+
• Description: IC TXRX T1 1-CHIP 5V 100-LQFP
• Manufacturer: Maxim Integrated Products

Specifications of DS21552L+

• Function: Single-Chip Transceiver
• Interface: E1, HDLC, J1, T1
• Number Of Circuits: 1
• Voltage - Supply: 4.75 V ~ 5.25 V
• Current - Supply: 75mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 100-LQFP
• Includes: DSX-1 and CSU Line Build-Out Generator, HDLC Controller, In-Band Loop Code Generator and Detector
• Product: Framer
• Number Of Transceivers: 1
• Data Rate: 64 Kbps
• Supply Voltage (max): 3.465 V
• Supply Voltage (min): 3.135 V
• Supply Current (max): 75 mA (Typ)
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Ic Interface Type: Parallel, Serial
• Supply Voltage Range: 4.75V To 5.25V
• Operating Temperature Range: 0°C To +70°C
• Digital Ic Case Style: LQFP
• No. Of Pins: 100
• Filter Terminals: SMD
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power (watts): -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Figure 16-6 PROTECTED INTERFACE EXAMPLE FOR THE DS21552
Note:
The 68uf cap is required to maintain VDD during a transient event.
D1 – D4
C1
C2
S
Fuse
Rt
Rterm
R1, R2, R3, R4
X1
X2
Receive
Transmit
COMPONET
Line
Line
Fuse
Fuse
Fuse
Fuse
R1
R2
R3
R4
Schottky Diode, International Rectifier 11DQ04
0.1uf ceramic in parallel with 10uf tantalum
.47 uf, non polarized ceramic construction
Semtech LC01-6, 6V low capacitance TVS
For more information on the selection of these components see the separate
application notes on Secondary Over Voltage Protection and T1 Network
Interface Design Criteria. These applications notes are available from Dallas
Semiconductor’s Web site at www.dalsemi.com
N:1
X1
1:1
X2
Rterm
S
Rt
Rt
0.1uF
C2
91 of 137
Rterm
D3
D1
470
470
DESCRIPTION
C1
+VDD
D2
D4
TTIP
TRING
RTIP
RRING
DS21552
MCLK
DVDD
RVDD
DVSS
TVDD
RVSS
TVSS
0.01uF
0.1uF
0.1uF
0.1uF
1.544MHz
+5V
+
68uf