B39191B4811Z710 [EPCOS]
SAW Filter, 1 Function(s), 188MHz;
| 型号： | B39191B4811Z710 |
| 厂家： | 
EPCOS |
| 描述： | SAW Filter, 1 Function(s), 188MHz LTE 配套器件 瞄准线 |
| 文件： | 总3页 (文件大小：36K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Filters for Industrial Applications
Series/Type: B4811
The following products presented in this data sheet are being withdrawn.
Ordering Code
Substitute Product
Date of Withdrawal Deadline Last
Orders
Last Shipments
2008-03-31
B39191B4811Z710
2007-09-21
2007-12-31
For further information please contact your nearest EPCOS sales office, which will also support you in selecting a
suitable substitute. The addresses of our worldwide sales network are presented at www.epcos.com/sales.
SAW Components
Low-Loss Filter
B4811
188,0 MHz
Data Sheet
Characteristics
Operating temperature range:
Terminating source impedance:
Terminating load impedance:
External coil
T
= -25 ˚C to + 75 ˚C
ZS = 580 Ω || 210 nH
ZL = 820 Ω || 255 nH
LC = 120 nH
min.
typ.
188,0
max.
fc
—
—
MHz
Center frequency
(center frequency between 3 dB points)
Minimum insertion attenuation
αmin
3,5
—
5,0
1,0
6,5
3,0
dB
dB
(including matching network)
Variation in insertion loss
∆αmin
∆α
Amplitude ripple in passband (p-p)
fc -60,0 kHz .. fc+60,0 kHz
—
—
1,0
1,5
2,0
3,0
dB
dB
fc -80,0 kHz .. fc+80,0 kHz
Group delay at fc
τ
3,0
—
4,0
1,0
5,0
1,5
µs
µs
Group delay ripple (p-p)
∆τ
fc -80,0 kHz .. fc+80,0 kHz
Relative attenuation (relative to αmin
)
αrel
fc ± 200 kHz ... fc ± 300 kHz
fc ± 300 kHz ... fc ± 400 kHz
fc ± 400 kHz ... fc ± 600 kHz
fc ± 600 kHz ... fc ± 1,6 MHz
fc ± 1,6 MHz ... fc ± 3,0 MHz
fc ± 3,0 MHz ... fc± 75,0 MHz
fc-12,0MHz
6,5
18
30
35
36
42
50
8
25
40
48
50
50
55
—
—
—
—
—
—
—
dB
dB
dB
dB
dB
dB
dB
Impedance at 188,0 MHz
Input: ZIN = RIN || CIN
Output: ZOUT = ROUT || COUT
—
—
580 ||3,4
820 ||2,8
—
—
Ω || pF
Ω || pF
Temperature coefficient of frequency 1)
Turnover temperature
TCf
T0
—
—
– 0,036
20
—
—
ppm/K2
˚C
1) Temperature dependance of fc: fc(T) = fc(T0)(1 + TCf(T – T0)2)
Preliminary format of data sheet
Terms of delivery and rights to change design reserved.
Page 2 of 3
OFW EM EU
Nov. 18, 1998
SAW Components
Low-Loss Filter
B4811
188,0 MHz
Data Sheet
Test matching network to 50 Ω (element values depend on pcb layout)
Cp1 = 12,0 pF
Cp4 = 10,0 pF
Ls2 = Ls3 = 82 nH
Lc = 120nH
Transfer function
Preliminary format of data sheet
Terms of delivery and rights to change design reserved.
Page 3 of 3
OFW EM EU
Nov. 18, 1998
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