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參數(shù)資料
| 型號(hào)： | TZA3015HW |
| 廠(chǎng)商： | NXP SEMICONDUCTORS |
| 元件分類(lèi)： | 數(shù)字傳輸電路 |
| 英文描述： | 30 Mbit/s to 3.2 Gbit/s A-rate 4-bit fibre optic transceiver |
| 中文描述： | TRANSCEIVER, PQFP100 |
| 封裝： | 14 X 14 MM, 1 MM HEIGHT, SOT-638-1, HTQFP-100 |
| 文件頁(yè)數(shù)： | 9/67頁(yè) |
| 文件大?。?/td> | 352K |
| 代理商： | TZA3015HW |
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2003 Dec 16
9
Philips Semiconductors
Preliminary specification
30 Mbit/s to 3.2 Gbit/s A-rate
4-bit fibre optic transceiver
TZA3015HW
Table 3
Truth table for pins DR2 to DR0 (pin UI = V
EE
)
Receiver
L
IMITING AMPLIFIER
The TZA3015HW contains a limiting amplifier (see Fig.3).
Toachieveoptimumreceiversensitivityforanybitrate,the
bandwidth of the amplifier is automatically scaled with the
bit rate. Wideband noise of the optical front-end (photo
detector and transimpedance amplifier) is thus reduced for
lower bit rates. When using the I
2
C-bus, the bandwidth of
the amplifier can be set independently of the bit rate with
bits AMP[2:0] in register LIMCON (D3h).
The highest bandwidth is selected as default at power-up.
Received Signal Strength Indicator (RSSI)
The signal strength at the input is measured with a
logarithmic detector. The logarithmic detector converts the
input signal amplitude into a voltage which can be
measured at pin RSSI. The RSSI reading has a dynamic
range of 40 dB with a sensitivity (S
RSSI
) of 17 mV/dB
(typical)foraV
i(p-p)
rangeof5 to 500 mV(seeFig.4).V
RSSI
can be calculated using the following formula:
where: V
RSSI(32mV)
= 680 mV (typical).
DR2
DR1
DR0
PROTOCOL
BIT RATE
(Mbit/s)
LOW
LOW
LOW
LOW
HIGH
HIGH
HIGH
HIGH
LOW
LOW
HIGH
HIGH
LOW
LOW
HIGH
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
LOW
HIGH
STM1/OC3
STM4/OC12
STM16/OC48
STM16 + FEC 2666.06
GE
10GE
Fibre Channel 1062.50
Fibre Channel 2125.00
155.52
622.08
2488.32
1250.00
3125.00
handbook, halfpage
MDB385
50
IN
INQ
50
VEE
VCCA
Fig.3 Limiter input termination configuration.
V
RSSI
V
RSSI(32mV)
S
RSSI
20log----------------
i(p-p)
32 mV
×
+
=
handbook, full pagewidth
MCE412
0
5
0.3
0.6
0.68
0.9
1.2
VRSSI
(V)
SRSSI
10
32
10
2
10
3
500
Vi(p-p) (mV)
300
Fig.4 V
RSSI
as a function of V
i(p-p)
.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TZA3017HW | 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:30 Mbits/s up to 3.2 Gbits/s A-rate fibre optic transmitter |
| TZA3019 | 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:2.5 Gbits/s dual postamplifier with level detectors and 2 x 2 switch |
| TZA3019AHT | 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:2.5 Gbits/s dual postamplifier with level detectors and 2 x 2 switch |
| TZA3019AV | 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:2.5 Gbits/s dual postamplifier with level detectors and 2 x 2 switch |
| TZA3019AVH | 制造商:未知廠(chǎng)家 制造商全稱(chēng):未知廠(chǎng)家 功能描述:APPLICATION SPECIFIC AMPLIFIER|DUAL|LLCC|32PIN|PLASTIC |
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