SY87725LHY TR Micrel Inc, SY87725LHY TR Datasheet - Page 5

• Manufacturer Part Number: SY87725LHY TR
• Description: 3.3V ONU SERDES (I Temp, /60 Pin EP-TQFP/T+R)
• Manufacturer: Micrel Inc
• Type: Transceiverr

Specifications of SY87725LHY TR

• Protocol: LVDS
• Voltage - Supply: 3.15 V ~ 3.45 V
• Mounting Type: Surface Mount
• Package / Case: 64-TQFP Exposed Pad, 64-eTQFP, 64-HTQFP, 64-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of Drivers/receivers: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: SY87725LHYTR; SY87725LHYTR

July 2007
TRANSLATOR SIGNALS
POWER PINS AND TEST PIN
19, 38, 47, 54,
LOOPBACK CONTROLS
Pin Number
21, 35, 58
16, 17
52, 53
4, 64
48
13
20
57
51
8
9
GND, Exposed Pad
XMT_CNTRL0,
RCV_CNTRL0,
XMT_CNTRL1
RCV_CNTRL1
OUTP, OUTN
Pin Name
GNDA
VCCO
VCCA
Testb
VCC
Test
IN
Transmit Loop back Multiplexer Control (TTL Inputs): Two single-ended control lines
to control the data flow for remote loop back or normal serial data output.
Receive Loop back Multiplexer Control (TTL Inputs): Two single-ended control lines
to control the data flow for local loop back or recovered serial data into the 1:4
DeMUX.
Signal from MAC to be translated (TTL Input)
Signal to Laser Diode Driver (CML Differential Output)
Test Mode Pin: When held LOW activates test mode. (For factory use only, leave
open for normal operation.)
Test Mode Pin: When held HIGH activates test mode. (For factory use only, must be
tied to GND for normal operation.).
Analog Power
ESR capacitors as close to VCCA pin as possible.
Analog Ground pin and exposed pad must be connected to the same ground plane.
Core Power: Connect to +3.3V power supply. Bypass with 0.1µF//0.1µF low
ESR capacitors as close to VCC pins as possible.
Core Ground: Ground pins and exposed pad must be connected to the same ground
plane.
CML Output Power
0.1µF//0.1µF low ESR capacitors as close to VCCO pin as possible.
: Connect to +3.3V power supply. Bypass with 0.1µF//0.1µF low
: Connect to +3.3V power supply. Bypass with
5
Pin Description
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M9999-071007-B