SA5217D-T [NXP]
IC SPECIALTY TELECOM CIRCUIT, PDSO20, Telecom IC:Other;
| 型号： | SA5217D-T |
| 厂家： | 
NXP |
| 描述： | IC SPECIALTY TELECOM CIRCUIT, PDSO20, Telecom IC:Other 放大器 |
| 文件： | 总12页 (文件大小：101K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
INTEGRATED CIRCUITS
SA5217
Postamplifier with link status indicator
Product specification
1998 Oct 07
Replaces datasheet NE/SA5217 of 1995 Apr 26
IC19 Data Handbook
Philips
Semiconductors
Philips Semiconductors
Product specification
Postamplifier with link status indicator
SA5217
DESCRIPTION
PIN CONFIGURATION
The SA5217 is a 75MHz postamplifier system designed to accept
low level high-speed signals. These signals are converted into a
TTL level at the output. The SA5217 can be DC coupled with the
previous transimpedance stage using SA5210, SA5211 or SA5212A
transimpedance amplifiers. The main difference between the
SA5217 and the SA5214 is that the SA5217 does not make the
output of A1 and input of A2 accessible; instead, it brings out the
output of A2 and the input of A8 thus activating the on-chip Schmitt
trigger function by connecting two external capacitors. The result is
that a much longer string of 1s and 0s, in the bit stream, can be
tolerated. This ”system on a chip” features an auto-zeroed first
stage with noise shaping, a symmetrical limiting second stage, and a
matched rise/fall time TTL output buffer. The system is
user-configurable to provide adjustable input threshold and
hysteresis. The threshold capability allows the user to maximize
signal-to-noise ratio, thereby insuring a low Bit Error Rate (BER).
An auto-zero loop can be used to replace two input coupling
capacitors with a single Auto Zero (AZ) capacitor. A signal absent
flag indicates when signals are below threshold. The low signal
condition forces the TTL output to the last logic state. User
interaction with this ”jamming” system is available. The SA5217 is
packaged in a standard 20-pin surface-mount package and typically
consumes 40mA from a standard 5V supply. The SA5217 is
designed as a companion to the SA5211/5212A and SA5210
transimpedance amplifiers. These differential preamplifiers may be
directly coupled to the postamplifier inputs. The SA5210/5217,
SA5211/5217 or SA5212A/5217 combinations convert nanoamps of
photodetector current into standard digital TTL levels.
1
D Package
LED
1
2
20
19
18
17
16
15
14
13
12
11
IN
1B
C
IN
PKDET
1A
THRESH
C
3
AZP
4
C
GND
A
AZN
FLAG
JAM
OUT
2B
5
IN
6
8B
7
V
OUT
2A
CCD
8
V
IN
CCA
8A
9
GND
D
R
HYST
10
R
V
PKDET
OUT
NOTE:
1. SOL - Released in large SO package only.
SD00354
Figure 1. Pin Configuration
FEATURES
• Postamp for the SA5211/5212A. SA5210 preamplifier family
• Wideband operation: typical 75MHz (150MBaud NRZ)
• Interstage filtering/equalization possible
• Single 5V supply
APPLICATIONS
• Fiber optics
• Communication links in Industrial and/or Telecom environment
• Low signal flag
with high EMI/RFI
• Output disable
• Local Area Networks (LAN)
• Synchronous Optical Networks (SONET) STS-1
• RF limiter
• Link status threshold and hysteresis programmable
• LED driver (normally ON with above threshold signal)
• Fully differential for excellent PSRR
• Auto-zero loop for DC offset cancellation
• 2kV ElectroStatic Discharge (ESD) protection
23
• Good for 2 -1 pseudo random bit stream
ORDERING INFORMATION
DESCRIPTION
TEMPERATURE RANGE
ORDER CODE
DWG #
20-Pin Plastic Small Outline Large (SOL) Package
-40 to +85°C
SA5217D
SOT163-1
ABSOLUTE MAXIMUM RATINGS
SYMBOL
PARAMETER
SA5214
+6
UNIT
V
V
CCA
V
CCD
Power supply
Power supply
+6
V
T
Operating ambient temperature range
Operating junction temperature range
Storage temperature range
Power dissipation
-40 to +85
-55 to +150
-65 to +150
1.4
°C
°C
°C
W
A
T
J
T
STG
P
V
D
Jam input voltage
-0.5 to 5.5
V
IJ
2
1998 Oct 07
853-1658 20141
Philips Semiconductors
Product specification
Postamplifier with link status indicator
SA5217
PIN DESCRIPTIONS
PIN SYMBOL
NO.
DESCRIPTION
1
LED
Output for the LED driver. Open collector output transistor with 125Ω series limiting resistor. An above threshold signal
turns this transistor ON.
2
C
Capacitor for the peak detector. The value of this capacitor determines the detector response time to the signal, supple-
menting the internal 10pF capacitor.
PKDET
3
4
5
THRESH Peak detector threshold resistor. The value of this resistor determines the threshold level of the peak detector.
GND
Device analog ground pin.
A
FLAG
Peak detector digital output. When this output is LOW, there is data present above the threshold. This pin is normally
connected to the JAM pin and has a TTL fanout of two.
6
JAM
Input to inhibit data flow. Sending the pin HIGH forces TTL DATA OUT ON, Pin 10, LOW. This pin is normally connected
to the FLAG pin and is TTL-compatible.
7
8
V
V
Power supply pin for the digital portion of the chip.
CCD
Power supply pin for the analog portion of the chip.
Device digital ground pin.
CCA
9
GND
D
10
11
V
TTL output pin with a fanout of five.
OUT
R
Peak detector current resistor. The value of this resistor determines the amount of discharge current available to the
PKDET
peak detector capacitor, C
.
PKDET
12
R
Peak detector hysteresis resistor. The value of this resistor determines the amount of hysteresis in the peak detector.
HYST
13 IN
Non-inverting input to amplifier A8.
Non-inverting output of amplifier A2.
Inverting input to amplifier A8.
8A
14 OUT
2A
2B
15 IN
8B
16 OUT
Inverting output of amplifier A2.
17
C
Auto-Zero capacitor pin (Negative terminal). The value of this capacitor determines the low-end frequency response of
the preamp A1.
AZN
18
C
Auto-Zero capacitor pin (Positive terminal). The value of this capacitor determines the low-end frequency response of the
preamp A1.
AZP
19 IN
20 IN
Non-inverting input of the preamp A1.
Inverting input of the preamp A1.
1A
1B
BLOCK DIAGRAM
V
V
OUT
OUT
IN
IN
8A
CCA
8
CCD
7
2A
2B
8B
15 13
14 16
SCHMITT TRIGGER
10
GATED AMP
A2
20
19
IN
1B
1A
A8
A1
V
OUT
IN
18
17
C
C
AZP
6
OUTPUT DISABLE
JAM
A6
AZN
PEAK DETECT
A3
5
1
11
FLAG
LED
A4
R
PKDET
A5
A7
LED DRIVER
HYSTERESIS
12
4
9
3
2
THRESH
GND
GND
C
R
HYST
A
D
PKDET
SD00355
Figure 2. Block Diagram
3
1998 Oct 07
Philips Semiconductors
Product specification
Postamplifier with link status indicator
SA5217
RECOMMENDED OPERATING CONDITIONS
SYMBOL
PARAMETER
RATING
4.5 to 5.5
4.5 to 5.5
-40 to +85
-40 to +110
300
UNIT
V
V
CCA
V
CCD
Power supply
Power supply
V
T
A
Ambient temperature range
°C
T
J
Operating junction temperature range
Power dissipation
°C
P
D
mW
DC ELECTRICAL CHARACTERISTICS
Min and Max limits apply over the operating temperature range at V
= V
= +5.0V unless otherwise specified. Typical data applies at
CCA
CCD
V
CCA
= V = +5.0V and T = 25°C.
CCD A
LIMITS
SYMBOL
PARAMETER
TEST CONDITIONS
UNIT
Min
Typ
30
Max
41.2
13.5
3.70
4.50
3.68
4.12
I
Analog supply current
mA
mA
V
CCA
I
Digital supply current (TTL, Flag, LED)
A1 input bias voltage (A,B inputs)
A1 output bias voltage (A,B outputs)
A8 input bias voltage Low (A,B inputs)
A8 input bias voltage High (A,B inputs)
High-level TTL output voltage
Low-level TTL output voltage
High-level TTL output current
Low-level TTL output current
Short-circuit TTL output current
Threshold bias voltage
10
CCD
V
I1
3.08
3.10
3.40
3.68
2.4
3.4
V
3.8
V
O2
I8L
I8H
OH
V
3.55
3.91
3.4
V
V
V
V
I
=-200µA
V
OH
V
OL
I
OL
=8mA
0.3
0.4
V
I
V
=2.4V
=0.4V
=0.0V
-40
30
-24.4
mA
mA
mA
V
OH
OUT
OUT
OUT
I
OL
V
V
7.0
2.0
I
-95
0.75
0.72
0.72
OS
V
V
Pin 3 Open
Pin 11 Open
Pin 12 Open
THRESH
RPKDET
RPKDET
V
V
RHYST bias voltage
V
RHYST
V
IHJ
High-level jam input voltage
Low-level jam input voltage
High-level jam input current
Low-level jam input current
High-level flag output voltage
Low-level flag output voltage
High-level flag output current
Low-level flag output current
Short-circuit flag output current
LED ON maximum sink current
V
V
ILJ
0.8
30
V
I
V =2.7V
IJ
µA
µA
V
IHJ
I
ILJ
V =0.4V
IJ
-485
2.4
-240
3.8
0.33
-18
10
V
OHF
I
=-80µA
OH
V
I
OL
=3.2mA
0.4
-5
V
OLF
OHF
I
V
V
V
=2.4V
=0.4V
=0.0V
=3.0V
mA
mA
mA
mA
OUT
OUT
OUT
I
3.25
-61
8
OLF
I
-40
22
-26
80
SCF
I
V
LED
LEDH
4
1998 Oct 07
Philips Semiconductors
Product specification
Postamplifier with link status indicator
SA5217
AC ELECTRICAL CHARACTERISTICS
Min and Max limits apply over the operating temperature range at V
= V
= +5.0V unless otherwise specified. Typical data applies at
CCA
CCD
V
CCA
= V = +5.0V and T = 25°C.
CCD A
LIMITS
Typ
SYMBOL
PARAMETER
TEST CONDITIONS
Test circuit
UNIT
Min
Max
f
Maximum operating frequency
60
75
MHz
OP
Maximum Functional A1 input signal (single en-
ded)
V
INH
Test Circuit
1.6
V
P-P
Minimum Functional A1 input signal (single-en-
ded)
6
3
9
Test CIrcuit
mV
P-P
P-P
Minimum Functional A1 input signal (differential)
–9
V
INL
Minimum input sensitivity for output BER ≤ 10
(single-ended)
23
PRBS = 2 –1
mV
–9
Minimum input sensitivity for output BER ≤ 10
4.5
(differential)
23
R
C
R
C
R
C
Input resistance (differential at IN )
PRBS = 2 –1
1200
2
Ω
IN1
1
Input capacitance (differential at IN )
pF
Ω
IN1
1
Input resistance (differential at IN )
2000
2
IN8
2
Input capacitance (differential at IN )
pF
Ω
IN2
2
Output resistance (differential at OUT )
25
2
OUT2
OUT2
2
Output capacitance (differential at OUT )
pF
2
Hysteresis voltage range (single-ended)
Hysteresis voltage range (differential)
10
5
Test circuit, T = 25°C
A
V
mV
HYS
THR
P-P
R
=5k R =33k
RHYST THRESH
(FLAG Low) Test circuit,
@ 50MHz
Threshold voltage (single-ended)
19
V
mV
P-P
Threshold voltage (differential)
TTL Output Rise Time 20% to 80%
TTL Output Fall Time 80% to 20%
R
=4k R
=33k
9.5
1.3
1.2
0.1
RHYST
THRESH
t
t
t
Test Circuit
Test Circuit
ns
TLH
ns
ns
THL
RFD
t
/t
mismatch
TLH THL
50mV , 1010. . .input
P-P
TH * TL
t
Pulse width distortion of output
TBD
%
102
PWD
Distortion =
TH ) TL
V
+5V
CC
NE5217
0.1µF
125
33k
1
2
20
19
18
17
16
15
14
13
12
11
LED
IN
IN
V
1B
1A
IN
0.1µF
C
PKDET
0.1µF
0.1µF
3
THRESH
C
C
50
AZP
4
GND
A
FLAG
AZN
5
25
OUT
2B
8B
6
JAM
IN
0.1µF
0.1µF
100µH
100µH
7
V
OUT
IN
CCD
2A
8A
8
V
CCA
4k
9
GND
R
0.1µF
D
HYST
10
V
R
OUT PKDET
10k
10µF
400
V
15pF
OUT
SD00356
Figure 3. AC Test Circuit
5
1998 Oct 07
Philips Semiconductors
Product specification
Postamplifier with link status indicator
SA5217
TYPICAL PERFORMANCE CHARACTERISTICS
Analog Supply Current vs Temperature
Digital Supply Current vs Temperature
36
12.0
11.5
11.0
10.5
10.0
9.5
34
32
30
28
26
24
V
= 5.25V
CC
V
= 5.00V
= 4.75V
CC
V
= 5.25V
= 5.00V
CC
V
CC
V
CC
V
= 4.75V
CC
9.0
–60 –40
–20
0
20
40
60
80 100
120
–60
–40 –20
0
20
40
60
80
100
120
TEMPERATURE (°C)
TEMPERATURE (°C)
SD00357
Figure 4. Typical Performance Characteristics
6
1998 Oct 07
Philips Semiconductors
Product specification
Postamplifier with link status indicator
SA5217
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
Threshold vs R
for Different Values of R
THRESH
HYST
On/Off Voltage vs R
(Driven Single Ended)
THRESH
(Driven Single Ended)
45
40
50
40
30
20
10
0
V
T
= 5V
CC
V
= 5V
CC
= 27 C
= 27 C
A
°
T
A
°
2k
3k
F = 60MHz
F = 60MHz
= 4k
R
35
30
HYST
ON
4k
25
20
15
OFF
5k
6k
10
20
30
R
40
50
(kΩ)
THRESH
10
20
30
THRESH
40
50
R
(kΩ)
Hysteresis and Forward Active Region
5
Hysteresis vs R
for Different Values of R
HYST
THRESH
R
R
= 33kΩ
THRESH
(Driven Single Ended)
V
IN1
= 4kΩ
16
14
12
HYST
4
V
T
= 5V
CC
= 27 C
OFF
A
°
F = 60MHz
V
THR
3
2
1
4k 5k
FORWARD
ACTIVE
REGION
(shaded)
10
8
3k
2k
V
HYS
6
6k
4
0N
0
2
0
5
10
15
(mV
20
25
30
SD00358
10
20
30
THRESH
40
50
V
)
R
(kΩ)
IN
P-P
Figure 5. Typical Performance Characteristics (cont)
input signal level, V . This condition is shown by the dotted line in
THEORY OF OPERATION AND APPLICATION
The SA5217 postamplifier is a highly integrated chip that provides
up to 60dB of gain at 60MHz, to bring mV level signals up to TTL
levels.
IN1
the graph. Such parts may require adjustment of R
if it is
THRESH
important to guarantee that an output signal is present for the full
hysteresis range. If this is not important, R may be adjusted
THRESH
to give a FLAG Low for lower level input signals.
The SA5217 contains eight amplifier blocks (see Block Diagram).
The main signal path is made up of a cascade of limiting stages: A1,
A2 and A8. The A3-A4-A7 path performs a wideband full-wave
rectification of the input signal with adjustable hysteresis and decay
times. It outputs a TTL High on the “FLAG” output (Pin 5) when the
input is below a user adjustable threshold. An on-chip LED driver
turns the external LED to the On state when the input signal is
above the threshold. In a typical application the “FLAG” output is
tied back tot he “JAM” input; forcing the “JAM” input to TTL High will
latch the TTL Data Out at the last logical state.
An auto-zero loop allows the SA5217 to be directly connected to a
transimpedance amplifier such as the SA5210, SA5211, or
SA5212A without coupling capacitors. This auto-zero loop cancels
the transimpedance amplifier’s DC offset, the SA5217 A1 offset, and
the data-dependent offset in the PIN diode/transimpedance amplifier
combination.
A typical application of the SA5217 postamplifier is depicted in
Figure 6. The system uses the SA5211 transimpedance amplifier
which has a 28k differential transimpedance gain and a -3dB
bandwidth of 140MHz. this typical application is optimized for a
50Mb/s Non Return to Zero (NRZ) bit stream.
Threshold voltage and hysteresis voltage range are adjustable with
resistors R
and R . The typical values given in the data
HYST
THRESH
sheet will result in performance shown in the graph “Hysteresis and
Forward Active Region”. A minority of parts may be sensitive
enough that FLAG High (Off) occurs below the minimum functional
As the system’s gain bandwidth product is very high, it is crucial to
employ good RF design and printed circuit board layout techniques
to prevent the system from becoming unstable.
7
1998 Oct 07
Philips Semiconductors
Product specification
Postamplifier with link status indicator
SA5217
+V
CC
GND
47µF
C1
C2
.01µF
L1
10µH
D1
LED
R2
220
C5
1.0µF
R1
100
C7
LED
C
GND
1
20
19
V
V
IN
IN
8
9
7
6
CC1
1B
1A
100pF
C8
C11
.01µF
C3
10µF
C4
.01µF
2
PKDET
GND
GND
GND
CC2
NC
100pF
THRESH
3
18
10
11
5
4
C
C6
AZP
AZN
GND
A
I
4
5
17
16
IN
C
0.1µF
C9
BPF31
OPTICAL
INPUT
R3
33k
FLAG
JAM
NC
OUT
12
13
3
2
2B
OUT
1
L2
10µH
6
7
15
14
GND
GND
GND
IN
8B
0.1µF
V
CCD
OUT
OUT
14
1
2
2A
C12
C13
10µF
C10
0.1µF
V
CCA
8
13
12
.01µF
IN
R
8A
GND
D
9
HYST
R
TTL
10
11
C15
PKDET
OUT
L3
C14
10µH
.01µF
10µF
R4
4k
R5
10k
V
(TTL)
OUT
NOTE:
THE NE5210/NE5217 combination can operate at data rates in excess of 100Mb/s NRZ
SD00359
Figure 6. A 50Mb/s Fiber Optic Receiver
For more information on this application, please refer to Application
Brief AB1432.
utilized for wafer sawing and die pick and place into waffle pack
carriers, it is impossible to guarantee 100% functionality through this
process. There is no post waffle pack testing performed on
individual die.
Die Sales Disclaimer
Due to the limitations in testing high frequency and other parameters
at the die level, and the fact that die electrical characteristics may
shift after packaging, die electrical parameters are not specified and
die are not guaranteed to meet electrical characteristics (including
temperature range) as noted in this data sheet which is intended
only to specify electrical characteristics for a packaged device.
Since Philips Semiconductors has no control of third party
procedures in the handling or packaging of die, Philips
Semiconductors assumes no liability for device functionality or
performance of the die or systems on any die sales.
Although Philips Semiconductors typically realizes a yield of 85%
after assembling die into their respective packages, with care
customers should achieve a similar yield. However, for the reasons
stated above, Philips Semiconductors cannot guarantee this or any
other yield on any die sales.
All die are 100% functional with various parametrics tested at the
wafer level, at room temperature only (25°C), and are guaranteed to
be 100% functional as a result of electrical testing to the point of
wafer sawing only. Although the most modern processes are
8
1998 Oct 07
Philips Semiconductors
Product specification
Postamplifier with link status indicator
SA5217
LED
IN
1B
IN
1A
C
PKDET
2
19
20
1
18
C
3
AZP
THRESH
17
4
GNDA
C
AZN
16
OUT
5
2B
FLAG
15
IN
8B
JAM
6
V
OUT
14
CCD
2A
7
13
IN
8
8A
V
CCA
9
10
11
R
12
ECN No.: 05379
1992 Jan 27
R
HYST
V
GNDD
PKDET
OUT
SD00491
Figure 7. SA5217 Bonding Diagram
9
1998 Oct 07
Philips Semiconductors
Product specification
Postamplifier with link status indicator
SA5217
SO20: plastic small outline package; 20 leads; body width 7.5 mm
SOT163-1
10
1998 Oct 07
Philips Semiconductors
Product specification
Postamplifier with link status indicator
SA5217
NOTES
11
1998 Oct 07
Philips Semiconductors
Product specification
Postamplifier with link status indicator
SA5217
Data sheet status
[1]
Data sheet
status
Product
status
Definition
Objective
specification
Development
This data sheet contains the design target or goal specifications for product development.
Specification may change in any manner without notice.
Preliminary
specification
Qualification
This data sheet contains preliminary data, and supplementary data will be published at a later date.
Philips Semiconductors reserves the right to make chages at any time without notice in order to
improve design and supply the best possible product.
Product
specification
Production
This data sheet contains final specifications. Philips Semiconductors reserves the right to make
changes at any time without notice in order to improve design and supply the best possible product.
[1] Please consult the most recently issued datasheet before initiating or completing a design.
Definitions
Short-form specification — The data in a short-form specification is extracted from a full data sheet with the same type number and title. For
detailed information see the relevant data sheet or data handbook.
Limiting values definition — Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one
or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or
at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended
periods may affect device reliability.
Application information — Applications that are described herein for any of these products are for illustrative purposes only. Philips
Semiconductors make no representation or warranty that such applications will be suitable for the specified use without further testing or
modification.
Disclaimers
Life support — These products are not designed for use in life support appliances, devices or systems where malfunction of these products can
reasonably be expected to result in personal injury. Philips Semiconductors customers using or selling these products for use in such applications
do so at their own risk and agree to fully indemnify Philips Semiconductors for any damages resulting from such application.
Righttomakechanges—PhilipsSemiconductorsreservestherighttomakechanges, withoutnotice, intheproducts, includingcircuits,standard
cells, and/or software, described or contained herein in order to improve design and/or performance. Philips Semiconductors assumes no
responsibility or liability for the use of any of these products, conveys no license or title under any patent, copyright, or mask work right to these
products, and makes no representations or warranties that these products are free from patent, copyright, or mask work right infringement, unless
otherwise specified.
Philips Semiconductors
811 East Arques Avenue
P.O. Box 3409
Copyright Philips Electronics North America Corporation 1998
All rights reserved. Printed in U.S.A.
Sunnyvale, California 94088–3409
Telephone 800-234-7381
Date of release: 10-98
Document order number:
9397 750 04627
Philips
Semiconductors
相关型号：
SA5222D-T
IC SPECIALTY TELECOM CIRCUIT, PDSO8, 3.90 MM, PLASTIC, MS-012AA, SOT-96-1, SOP-8, Telecom IC:Other
NXP
©2020 ICPDF网 联系我们和版权申明