參數(shù)資料
型號： KSZ9021GQI
廠商： Micrel Inc
文件頁數(shù)： 42/59頁
文件大?。?/td> 0K
描述： TXRX GIG ETH GMII/MII 128-PQFP
標(biāo)準(zhǔn)包裝： 66
類型： 收發(fā)器
驅(qū)動器/接收器數(shù)： 8/8
規(guī)程： 千兆位以太網(wǎng)
電源電壓： 3.135 V ~ 3.465 V
安裝類型： 表面貼裝
封裝/外殼： 128-BFQFP
供應(yīng)商設(shè)備封裝： 128-PQFP（14x20）
包裝： 托盤
其它名稱： 576-3790
Micrel, Inc.
KSZ9021GQ
September 2010
47
M9999-091010-1.2
Symbol
Parameter
Condition
Min
Typ
Max
Units
Supply Current – Transceiver (equivalent to current draw through external transformer center taps for PHY transceivers
with current-mode transmit drivers)
1000Base-T Link-up (no traffic)
74
mA
1000Base-T Full-duplex @ 100% utilization
73
mA
100Base-TX Link-up (no traffic)
28
mA
100Base-TX Full-duplex @ 100% utilization
28
mA
10Base-T Link-up (no traffic)
35
mA
10Base-T Full-duplex @ 100% utilization
43
mA
Power-saving Mode (cable un-plugged)
35
mA
Software Power Down Mode (register 0.11 =1)
2
mA
IAVDDH
3.3V for transceiver
Chip Power Down Mode
(strap-in pins MODE[3:0] = 0111)
1
mA
CMOS Inputs
DVDDH = 3.3V
2.0
V
VIH
Input High Voltage
DVDDH = 2.5V
1.8
V
DVDDH = 3.3V
0.8
V
VIL
Input Low Voltage
DVDDH = 2.5V
0.7
V
IIN
Input Current
VIN = GND ~ VDDIO
-10
10
A
CMOS Outputs
DVDDH = 3.3V
2.4
V
VOH
Output High Voltage
DVDDH = 2.5V
2.0
V
DVDDH = 3.3V
0.4
V
VOL
Output Low Voltage
DVDDH = 2.5V
0.4
V
|Ioz|
Output Tri-State Leakage
10
A
LED Outputs
ILED
Output Drive Current
Each LED pin
(LED1, LED2, LED3, LED4, LED5, LED6)
8
mA
100Base-TX Transmit (measured differentially after 1:1 transformer)
VO
Peak Differential Output Voltage
100
Ω termination across differential output
0.95
1.05
V
VIMB
Output Voltage Imbalance
100
Ω termination across differential output
2
%
tr, tf
Rise/Fall Time
3
5
ns
Rise/Fall Time Imbalance
0
0.5
ns
Duty Cycle Distortion
± 0.25
ns
Overshoot
5
%
VSET
Reference Voltage of ISET
R(ISET) = 4.99K
0.535
V
Output Jitter
Peak-to-peak
0.7
1.4
ns
10Base-T Transmit (measured differentially after 1:1 transformer)
VP
Peak Differential Output Voltage
100
Ω termination across differential output
2.2
2.8
V
Jitter Added
Peak-to-peak
3.5
ns
Harmonic Rejection
Transmit all-one signal sequence
-31
dB
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