DS33R11 Maxim Integrated Products, DS33R11 Datasheet - Page 104

• Manufacturer Part Number: DS33R11
• Description: Network Controller & Processor ICs Ethernet Mapper with Integrated T1-E1-J1
• Manufacturer: Maxim Integrated Products

Specifications of DS33R11

• Product: Framer
• Number Of Transceivers: 1
• Supply Voltage (max): 1.89 V, 3.465 V
• Supply Voltage (min): 1.71 V, 3.135 V
• Supply Current (max): 100 mA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Package / Case: BGA

10.24 Recommended Circuits
Figure 10-7. Basic Interface
Refer to Application Note 324: T1/E1 Network Interface Design for more information on protected interfaces.
Table 10-13. Transformer Specifications
Turns Ratio 3.3V Applications
Primary Inductance
Leakage Inductance
Intertwining Capacitance
Transmit Transformer DC Resistance
Receive Transformer DC Resistance
Primary (Device Side)
Secondary
Primary (Device Side)
Secondary
TRANSMIT
NOTE 1: ALL RESISTOR VALUES ARE ±1%.
NOTE 2: RESISTORS R SHOULD BE SET TO 60Ω EACH IF THE INTERNAL RECEIVE-SIDE TERMINATION FEATURE IS ENABLED.
WHEN THIS FEATURE IS DISABLED, R = 37.5Ω FOR 75Ω COAXIAL E1 LINES, 60Ω FOR 120Ω TWISTED-PAIR E1 LINES, OR 50Ω
FOR 100Ω TWISTED-PAIR T1 LINES.
NOTE 3: C = 1μF CERAMIC.
LINE
RECEIVE
LINE
SPECIFICATION
2:1
1:1
R
C
0.1μF
1:1 (receive) and 1:2 (transmit) ±2%
600μH (min)
1.0μH (max)
40pF (max)
1.0Ω (max)
2.0Ω (max)
1.2Ω (max)
1.2Ω (max)
104 of 344
R
TTIP
TRING
RTIP
RRING
RECOMMENDED VALUE
DS33R11
DVDD
DVSS
RVDD
TVDD
RVSS
TVSS
0.1μF
0.1μF
0.1μF
0.01μF
10μF
10μF
+
+
VDD