OAT1521S-ONU-V3-C-06中文资料

FSAN ONU/ONT Optical Transceiver -G983.1/3 Option.1(OC3) ClassC-

OAT1521S-ONU-V3-C-06

Data Sheets

Modification History

Rev. Date Author / Project Manager Comment Rev.1 Sep.9, 2002 H. Okada / K. Yusa

1. General Description

The OAT1521S-ONU-V3-C-06 optical transceiver is compliant with recommendation of ITU-T G.983.1 / 983.3 option1 class B for use in ATM-PON application. It is applicable for the optical interface of the ONU /ONT which is located on the subscriber side. These modules have the following functions.

-1-fiber bi-directional transmission by incorporated wavelength division multiplexer (WDM).

-Conversion of 156Mbit/s electric signal to 1.3um optical signal by laser diode (E/O conversion).

-Stabilization of optical output power and waveform with laser diode driving current temperature

compensation circuit.

-Transmit failure (TF) detection.

-Optical signal output shut down (LS).

-Conversion of 156Mbit/s 1.55um optical signal to electric signal by PIN-photo diode (O/E conversion).

- w/ CDR function

-Incoming signal lost detection (LOS).

The specifications are shown on the table 1.1

Table1.1 Specifications

Parameter Unit OAT1521S-ONU-V3-C-06

Bit rate Mbps Up-stream:155.52

Down-stream:155.52 Transmission mode ?Tx: burst

Rx: continuous

Transfer code ?NRZ

Bi-directional transmission ?1-fibre WDM

Transmission distance km 20

Laser diode ? 1.31nm FP-LD

photo detector ?PIN-PD

Operating temperature range °C -40 to 85

Operating humidity % 5 to 90

Fiber/Connector type ?Single mode fiber (10/125um) /

PC polished SC connector Power supply voltage V +3.3 +/- 5%

Power consumption W 1.1 (typ.) ,1.5(max)

Dimension mm 40 x 60 x 9.5

2. Absolute Maximum Ratings

Stress in excess of the maximum absolute ratings can cause permanent damage to the module.

Table2.1 Absolute maximum ratings

Parameter Symbol Conditions Ratings

Unit Power supply voltage Vcc 0 to +4.6 V Input voltage Vi 0 to Vcc

V Maximum output current Io Ta = 25°C 30 mA Operating temperature Top ONU:-40 to +85 °C Storage temperature Tstg -40 to +85 °C Soldering temperature/time 250/10

°C/sec Maximum tension of fiber 500

g Minimum bending radius 30 mm Maximum optical input power Ta = 25°C

0 dBm

3.Block diagram

Figuer3.1 Block diagram (OAT1521S-ONU-V3-C-06)

TF OPT I/O 1490or1550nm /1310nm

CLK IN DATA IN PRE-BIAS IN

SHUT IN

DATA OUT CLK OUT

LOS

4.Package outline

Figure4.2 (OAT1521S-ONU-V3-C-06)

5. Pin description

Table 5.1 Pin descriptions (OAT1521S-ONU-V3-C-06)

No. I/O Symbol Level Logic Functionality 01 SVCC Transmitter power supply (+3.3V) 02 GND Ground 03 I SHUT LVTTL P Optical output shut down 04 O TF LVTTL P Transmitter Failure alarm 05 GND Ground 06 I BIASP LVPECL Pre-bias input(pos)

07 I BIASN LVPECL P

Pre-bias input(neg) 08 GND Ground 09 I SDATAP LVPECL Data input(pos)

10 I SDATAN LVPECL P

Data input(neg) 11 I SCLKP LVPECL Clock input(pos)

12 I SCLKN LVPECL P

Clock input(neg) 13 GND Ground 14 O LOS LVTTL P Loss of incoming signal alarm 15 GND Ground 16 O RDATAN LVPECL Data output (neg)

17 O RDATAP LVPECL P

Data output (pos) 18 GND Ground 19 O RCLKN LVPECL Clock output (neg)

20 O RCLKP LVPECL P

Clock output (pos) 21 GND Ground 22 GND Ground 23 RVCC1 Receiver power supply (+3.3V) 24

RVCC2 Receiver power supply (+3.3V)

6.Optical and electrical characteristics

Table6.1 Optical characteristics

Parameter Unit OAT1521S-ONU-V3-C-06 Operating wavelength nm Tx: 1260 ~ 1360

Rx: 1480 ~ 1580 Mask of the transmitter eye

diagram

Figure6.1 Maximum reflectance of equipment,

measured at transmitter wavelength

dB less than -6 Mean launched power range dBm SOL: -1.5 to +4.0/EOL: -2.0 to +4.0 Minimum extinction ratio dB 10

Tolerance to the transmitter incident light power dB

more than -15

Launched optical power

w/o input to the transmitter dBm

less than –43

Maximum spectral width nm 5.8 (@rms) Side mode suppression ratio dB -

Jitter transfer 0.1 (fc=130kHz)

Figure6.2

Jitter generation in 1.3kHz bandwidth UIpp

0.2

Maximum reflectance of equipment, measured at receiver wavelength dB

less than -20

Bit error ratio ?less than 10-10 Minimum sensitivity dBm SOL: -33.5 /EOL: -33.0 Minimum overload dBm SOL: -7.5/EOL: -8.0 Consecutive identical digit

immunity

?more than 72 Jitter tolerance ?Figure6.3

Tolerance to the reflected optical power dB

More than -10

Table6.2 Electrical characteristics

Parameter Unit OAT1521S-ONU-V3-C-06

MIN TYP MAX PECL input high voltage VCC-1.17 VCC-0.88 PECL input low voltage VCC-1.81 VCC-1.47 PECL output high voltage VCC-1.02 VCC-0.88 PECL output low voltage VCC-1.81

VCC-1.62 LVTTL input high voltage

2.0

Vcc+0.3 LVTTL input low voltage -0.3 0.8 LVTTL output high voltage 2.4 Vcc LVTTL output low voltage V

0.4 Clock input duty

% 40 50 60 Data output rise/fall time ( 20 - 80 % )

ns 1.2

Clock/Data input setup & hold time

Figure6.4 Clock/Data output timing Figure6.5 Data/Prebias Input Timing

Figure6.6

Figure6.1 Eye pattern mask

A m p l i t u d e

UI

Figure6.2 Jitter transfer

Figure6.3 Jitter tolerance

J i t t e r g a i n [d B ]

6.5kHz

65kHz

Frequency

I n p u t j i t t e r a m p l i t u d e [U I p -p ]

This timing is based on the data cross point

Figure6.4 Clock/Data, Bias input setup & hold time

This timing is based on the data cross point. Figure6.5 Clock/Data output timing

Data,Bias Input

Clock Input

≥ 1.2 ns hld ≥ 1.2 ns

Clock output

Data output

OAT1521S-ONU-V3-C-06 : 0.8ns ≤ ?t ≤ 1.8ns

T1 > 2bits t

Bias(P) Input

T2 = 0bit

Figure6.6 Up-stream Data/Bias signal input timing

7. Recommended interface circuit

Figure7.1 Recommended interface circuit

SVCC RVCC

8. Precautions for handling

The circuits of these modules operate at very small signal. In order to avoid the degradation of the optical sensitivity due to external noise, the bottom pattern of these modules on the PCB should be ground pattern with low impedance.

Do not mount/pattern device/circuits which generate high frequency noise close to the module.

In order to operate the module stable against the power noise, install the power supply noise reduction circuits.

The impedance between the power and ground pattern of the power circuit should be as low as possible. The elements around the module should be mounted close to the pins of the module.

If an optical power exceeding the absolute maximum ratings is fed to the module, the optical receiver may be damaged. Set the optical input power appropriately when in use of these modules.

9. Qualification and Reliability

To help ensure high product reliability and customer satisfaction, OKI is committed to an intensive quality program that starts in the design phase and proceeds through the manufacturing process.

Optical transceiver modules are qualified to OKI internal standards using MIL-STD-883 test methods and procedures and using sample techniques consistent with Telcordia requirements.

This qualification program fully meets the intent of Telcordia reliability practices GR-468-CORE.

10. Laser Safety

All version of transceiver are Class 1 Laser products FDA complies with 21 CFR 1040.10 and 1040.11 requirements.

Also, all versions are Class 1 Laser products pre IEC 825-1.