參數(shù)資料
型號(hào)： STLC1512
廠商： 意法半導(dǎo)體
英文描述： NorthenLite⑩ G.lite BiCMOS Analog Front-End Circuit
中文描述： NorthenLite⑩G.lite的BiCMOS模擬前端電路
文件頁(yè)數(shù)： 8/26頁(yè)
文件大小： 329K
代理商： STLC1512
STLC1512
8/26
4.3 Programmable Gain Amplifier (PGA) Performance Specifications
It should be noted that the PGA and LPF in the receive path must be AC coupled to avoid problems with ampli-
fying any offsets.
Both the PGA and the amplifiers are specified in terms of the silicon only. This is to allow the system design to
be more flexible. The appendices show how to convert some of the silicon specs to system specs.
Figure 3. Power Supply Rejection of the Power Amplifier
1
<1>This is a nominal specification. 6 dB of margin should be added to arrive at a worst case spec.
Table 5. PGA performance Specifications
Unless otherwise specified, NOM specifications apply for VCC=5.0V, temperature range outlined in Table 4.4,
nominal process and bias current. MAX and MIN performances with 5% variation on VCC, -40 <= T
ambient
<=85
o
C,
and worst case process and bias current and a minimum load of 440 W.
DESCRIPTION
MIN
NOM
MAX
UNITS
COMMENTS
Absolute Voltage Gain
1,2
D=00
D=01
D=10
D=11
11.4
1.4
-5.6
-19.8
11.8
1.8
-5.2
-19.2
12.2
2.2
-4.8
-18.8
dB
dB
dB
dB
Where ‘D’ is the binary value
of the control word
[PGA1, PGA0]
Gain settings are from the pin
PGAIN to pin PGAOUT (See
‘a(chǎn)pplication diagram’)
WDB (PAOUT)
-40
-60
-80
-100
3.00e+04
1.00e+05
6.00e+05
Hz
dB
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