SY87725LHY Micrel Inc, SY87725LHY Datasheet - Page 8

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

Specifications of SY87725LHY

• 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: 576-2544; SY87725LHY

Loop Filter Components
July 2007
RCV_CNTRL0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
RCV_CNTRL1
XMT_CNTRL0
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
1
0
1
XMT_DDRSEL
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
XMT_CNTRL1
Table 5. Remote Loopback Controls
Table 4. Local Loopback Controls
0
0
1
1
RCV_DDRSEL
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
8
Table 6. Synthesizer & Clock Recovery Loop Filter Values
XMT_PLLS
Rcv_PLLS
Rcv_PLLR
Recovered Clock (from SIN)
Recovered Data (from SIN)
DIN (Normal Data Flow)
SIN (Recovered Data)
SIN (Recovered Data)
SIN (Recovered Data)
SIN (Recovered Data)
SIN (Bypass CDR)
SIN (bypass)
SIN (bypass)
SIN (bypass)
SIN (bypass)
DOUT
SOUT
N/A
DIN
N/A
DIN
N/A
DIN
N/A
DIN
[e-mail]
1.2kΩ
1.2kΩ
390Ω
R
Recovered Clock/4
Recovered Clock/4
Recovered Clock/8
Recovered Clock/8
REFCLK/4
REFCLK/4
REFCLK/8
REFCLK/8
2 * CLKIN
CLKOUT
CLKIN/2
CLKIN
or [phone]
CLKIN
M9999-071007-B
N/A
N/A
N/A
N/A
1µF
1µF
1µF
C