DS26334 Просмотр технического описания (PDF) - Maxim Integrated
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DS26334 Datasheet PDF : 121 Pages
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DS26334 3.3V, 16-Channel, E1/T1/J1 Short/Long-Haul Line Interface Unit
NAME
RESREF
RRING1
RRING2
RRING3
RRING4
RRING5
RRING6
RRING7
RRING8
RRING9
RRING10
RRING11
RRING12
RRING13
RRING14
RRING15
RRING16
TPOS1/TDATA1
TPOS2/TDATA2
TPOS3/TDATA3
TPOS4/TDATA4
TPOS5/TDATA5
TPOS6/TDATA6
TPOS7/TDATA7
TPOS8/TDATA8
TPOS9/TDATA9
TPOS10/TDATA10
TPOS11/TDATA11
TPOS12/TDATA12
TPOS13/TDATA13
TPOS14/TDATA14
TPOS15/TDATA15
TPOS16/TDATA16
TNEG1
TNEG2
TNEG3
TNEG4
TNEG5
TNEG6
TNEG7
TNEG8
TNEG9
TNEG10
TNEG11
TNEG12
TNEG13
TNEG14
TNEG15
TNEG16
PIN
R9
A2
C2
H2
N2
R1
R3
R8
R13
T15
P15
J15
D15
B16
B14
B9
B4
F6
G7
J6
K6
L9
N5
P12
M11
L11
J11
G11
C14
F9
E7
N12
D5
C3
J14
J5
G10
M6
P6
P7
K9
L12
J12
H11
E13
G8
F7
C6
C5
TYPE
Analog
input
FUNCTION
Resistor Reference. If fully internal receive impedance match is
selected, a 16kΩ ±1% resistor to GND is needed. If not used, tie pin
low.
Analog
input
Receive Bipolar Ring for Channels 1–16. Receive analog input for
differential receiver. Data and clock are recovered and output at
RPOS/RNEG and RCLK pins, respectively. The differential inputs of
RTIPn and RRINGn can provide internal impedance matching with
external resistance for E1 75Ω, E1 120Ω, T1 100Ω, or J1 110Ω.
DIGITAL Tx/Rx
Transmit Positive Data Input for Channels 1–6. When DS26334 is
configured in dual-rail mode, the data input to TPOSn is output as a
positive pulse on the line (tip and ring).
I
Transmit Data Input for Channels 1–16. When the device is
configured in single-rail mode NRZ data is input to TDATAn. The data
is sampled on the falling edge of TCLKn and encoded HDB3/B8ZS or
AMI before being output to the line.
Transmit Negative Data for Channels 1–16. When DS26334 is
configured in dual-rail mode. The data input to TNEGn is output as a
negative mark on the line. TPOS and TNEG in dual-rail mode result in
positive and negative pulses sent on the line:
TPOSn
I
0
0
1
1
TNEGn
0
1
0
1
OUTPUT PULSE
Space
Negative mark
Positive mark
Space
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