XRT91L80(2005-03) 查看數據表（PDF） - Exar Corporation
零件编号
产品描述 (功能)
生产厂家
XRT91L80 Datasheet PDF : 41 Pages
| |||
XRT91L80
PRELIMINARY
2.488/2.666GBPS OC-48/STM-16 SONET/SDH TRANSCEIVER
xr
REV. P1.0.4
POWER AND GROUND
NAME
TYPE
PIN
DESCRIPTION
VDD1.8
PWR
A13, B7, B13, D12, E12,
K11, L9, L10, M9, M10,
M11, P13, P14
Digital 1.8V Power Supply
VDDD1.8 should be isolated from the analog power supplies. For
best results, use a ferrite bead along with an internal power plane
separation. The VDDD1.8 power supply pins should have bypass
capacitors to the nearest ground.
AVDD1.8_Rx PWR
D4, D5, D6, D8, F3, G3
Analog 1.8V Receiver Power Supply
AVDD1.8_Rx should be isolated from the digital power supplies.
For best results, use a ferrite bead along with an internal power
plane separation. The AVDD1.8_Rx power supply pins should
have bypass capacitors to the nearest ground.
AVDD1.8_Tx
PWR
J1, J4, L6, L7, L8, M3, N9,
M2
Analog 1.8V Transmitter Power Supply
AVDD1.8_Tx should be isolated from the digital power supplies.
For best results, use a ferrite bead along with an internal power
plane separation. The AVDD1.8_Tx power supply pins should
have bypass capacitors to the nearest ground.
DGND
GND
A5, A12, B3, B8, B12, F11,
F12, G11, G12, G13, G14,
H11, H12, J11, J12, K12,
L3, L11, L12, P12
Digital Ground for 3.3V / 1.8V Digital Power Supplies
It is recommended that all ground pins of this device be tied
together.
AGND_Rx
GND
A1, B1, B2, C2, C3, D2,
D7, E1, E2, E4, F2, F4, G2,
G4, H1, H2, H3, H4
Receiver Analog Ground for 3.3V / 1.8V Analog Power Sup-
plies
It is recommended that all ground pins of this device be tied
together.
AGND_Tx
GND
J2, J3, K2, K3, K4, L2, L4, Transmitter Analog Ground for 3.3V / 1.8V Analog Power
L5, M1, M4, M5, N5, N7, Supplies
P7
It is recommended that all ground pins of this device be tied
together.
TGND
GND
E5, E6, E7, E8, E9, E10, Thermal Ground
F5, F6, F7, F8, F9, F10, It is recommended that all ground pins of this device be tied
G5, G6, G7, G8, G9, G10, together.
H5, H6, H7, H8, H9, H10,
J5, J6, J7, J8, J9, J10, K5,
K6, K7, K8, K9, K10
NO CONNECTS
NAME
NC
LEVEL
TYPE
NC
PIN
DESCRIPTION
A4 No Connect
B4 This pin can be left floating or tied to ground.
10
Share Link: 