参数资料
型号: VCA2615PFBR
厂商: TEXAS INSTRUMENTS INC
元件分类: 模拟信号调理
英文描述: SPECIALTY ANALOG CIRCUIT, PQFP48
封装: GREEN, PLASTIC, TQFP-48
文件页数: 28/33页
文件大小: 1122K
代理商: VCA2615PFBR
VCA2615
SBOS316D JULY 2005 REVISED OCTOBER 2008
www.ti.com
4
ELECTRICAL CHARACTERISTICS (continued)
All specifications at TA = +25°C, VDD = 5V, load resistance = 500 on each output to ground; the input to the preamp (LNP) is single-ended;
fIN = 5MHz, LNP Gain (G1, G2) = 10, H/L = 0, VCNTL = 2.5V; VCA output is 1VPP differential; CA, CB = 3.9F, unless otherwise noted.
PARAMETER
UNIT
VCA2615
CONDITIONS
PARAMETER
UNIT
MAX
TYP
MIN
CONDITIONS
ACCURACY
Gain Slope
VCNTL = 0.4V to 2.0V
22
dB/V
Gain Error(4)
VCNTL = 0.4V to 2.0V
1.5
±0.9
+1.5
dB
Gain Range
VCNTL = 0.2V to 2.5V
52
dB
Gain Range
VCNTL = 0.4V to 2.0V
36.5
dB
Gain Range (H/L)
H/L = 0 (+6dB); VGA High Gain; VCNTL = 0.2V to 2.5V
12 to +40
dB
H/L = 1 (0dB); VGA Low Gain; VCNTL = 0.2V to 2.5V
18 to +34
dB
Output Offset Voltage, Differential
±50
mV
Channel-to-Channel Gain Matching
VCNTL = 0.4V to 2.0V, CHA to CHB
±0.33
dB
GAIN CONTROL INTERFACE (VCNTL)
Input Voltage Range
0.2 to 2.5
V
Input Resistance
Response Time
1
M
Input Resistance
Response Time
VCNTL = 0.2V to 2V; to 90% Signal Level
0.6
s
DIGITAL INPUTS(5), (6)
(G1, G2, PDL, PDV, H/L, FB1-FB4, VCAINSEL)
VIH, High-Level Input Voltage
2.0
V
VIL, Low-Level Input Voltage
0.8
V
Input Resistance
1
M
Input Capacitance
5
pF
POWER SUPPLY
Supply Voltage
4.75
5.0
5.25
V
Power-Up Response Time
25
s
Power-Down Response Time
2
s
Total Power Dissipation
PDV, PDL = 1
308
350
mW
VGA Power-Down
PDV = 0, PDL = 1
236
mW
LNP Power-Down
PDL = 0, PDV = 1
95
mW
THERMAL CHARACTERISTICS
Temperature Range
Ambient, Operating
40
+85
°C
Thermal Resistance,
qJA
QFN48 Soldered Pad; Four-Layer PCB with Thermal Vias
29.1
°C/W
qJC
2.2
°C/W
qJA
TQFP48
58
°C/W
(1)
R
IN +
R
F
(1
)
A
LNP
2
)
(2) 2ndharmonic, 3rd-harmonic distortion less than or equal to 30dBc.
(3) See Table 5.
(4) Referred to best-fit dB linear curve.
(5) Parameters ensured by design; not production tested.
(6) Do not leave inputs floating; no internal pull-up/pull-down resistors.
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