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1340TMPC 데이터시트 PDF




Agere Systems에서 제조한 전자 부품 1340TMPC은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


 

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부품번호 1340TMPC 기능
기능 1340-Type Lightwave Receiver
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1340TMPC 데이터시트, 핀배열, 회로
Data Sheet
January 2000
1340-Type Lightwave Receiver
s CMOS (TTL) link-status flag output
s Operation at 1.3 µm or 1.55 µm wavelengths
s Operating case temperature range of
–40 °C to +85 °C
Applications
Operating at 1.1 µm through 1.6 µm wavelengths and at
155 Mbits/s, 622 Mbits/s, or 1.25 Gbits/s, the versatile
1340-Type Receiver is manufactured in a 20-pin, plastic DIP
with a multimode fiber pigtail.
s Telecommunications:
— Inter- and intraoffice SONET/ITU-T SDH
— Subscriber loop
— Metropolitan area networks
s High-speed data communications
Features
s Backward compatible with 1310 receiver family
s Space-saving, self-contained, 20-pin plastic DIP
s Silicon-based ICs
s Single 5 V power supply operation including photo-
current monitor capability
s Exceeds all SONET (GR-253-CORE) and ITU-T
G.958 jitter requirements
s Wide dynamic range
s Qualified to meet the intent of Telcordia Technolo-
gies * reliability practices
s Operates at data rates of 155 Mbits/s,
622 Mbits/s, or 1.25 Gbits/s
s Positive ECL (PECL) data outputs
Description
The 1340-Type receiver is designed for use in trans-
mission systems or medium- to high-speed data
communications applications at data rates up to
1.25 Gbits/s. Compact packaging, along with wide
dynamic range, makes these receivers ideal for both
telecommunications and data communications appli-
cations.
The following three versions of the receiver are avail-
able:
s SONET/SDH compliant with OC-3/STM-1
s SONET/SDH compliant with OC-12/STM-4
s 1.25 Gbits for data applications.
* Telcordia Technologies is a trademark of Telcordia Technologies,
Inc.




1340TMPC pdf, 반도체, 판매, 대치품
1340-Type Lightwave Receiver
Data Sheet
January 2000
Data and Flag Outputs (continued)
The FLAG and FLAG outputs of the OC-3/STM-1
155 Mbits/s version of the 1340 receiver are PECL
logic levels driven by open emitter transistors with the
same characteristics as the data outputs. These out-
puts must be properly terminated in order to obtain the
correct logic levels. Since the FLAG function is basi-
cally a dc switch that indicates the loss of optical input
signal, it can be interfaced to much slower TTL or
CMOS logic circuits.
The circuit shown in Figure 2 provides one example of
how to create a TTL logic output from the PECL FLAG
output signal. The outputs of the LT1016 are TTL-com-
patible and provide both true and inverted logic levels.
The Q output of this circuit will be a TTL high (>2.5 V)
when the 1340 is receiving an optical signal greater
than the FLAG switching threshold and will be a TTL
low (<0.4 V) whenever the optical signal is absent or is
below the FLAG switching threshold. The FLAG and
FLAG outputs of the OC-12/STM-4 and 1.25 Gbits/s
receivers are 5 V TTL logic level compatible. The FLAG
output is provided directly by the comparator IC. How-
ever, the FLAG output is derived from the FLAG output
through an inverter. Excessive loading of the FLAG out-
put can cause the FLAG output to malfunction.
+5 V
1340
RX
11
12
FLAG
14
FLAG
10 k•
+5 V
+
LT1016*
Q
Q
10 k•
TTL (TRUE)
TTL (INVERTED)
* Part available from Linear Technology Corporation of Milpitas, CA 95035.
Figure 2. Converting PECL FLAG Outputs to TTL
1-800(C).a
4 Agere Systems Inc.

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1340TMPC 전자부품, 판매, 대치품
Data Sheet
January 2000
1340-Type Lightwave Receiver
Pin Information
Table 1. Pin Descriptions
Pin Number
Description
1 Ground
2 Ground
3 Ground
4 Ground
5 No User Connection*
6 Ground
7 DATA
8 Ground
9 DATA
10 NIC or Optional VPIN
11 Vcc (5 V)
12 FLAG
13 Ground
14 FLAG
15 Ground
16 Ground
17 No User Connection*
18 No User Connection*
19 No User Connection*
20 No User Connection*
* Pins designated as no user connection are not connected internally within the receiver. However, to allow for future functional upgrades, it is
recommended that the user not make any connections to these pin positions.
† The link-status flag is a logic output that indicates the presence or absence of a minimum acceptable level of optical input. A logic high on
FLAG indicates the presence of a valid optical signal.
Handling Precautions
Mounting and Connections
The pigtail consists of a 39 in. ± 4 in. (1 m ± 10 cm), 62.5 µm core/125 µm cladding multimode fiber. The standard
fiber has a 0.036 in. (914 µm) diameter tight-buffered outer jacket. The minimum fiber bending radius during opera-
tion is 1.0 in. (25.4 mm).
Agere Systems Inc.
7

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1340-Type Lightwave Receiver

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