CHT4012-QDG_15 Datasheet, PDF (3/12 Pages) United Monolithic Semiconductors – DC-6GHz 6-BIT DIGITAL ATTENUATOR

DC-6GHz 6-BIT DIGITAL ATTENUATOR CHT4012-QDG
Definitions
n: Attenuator state index with 0 ≤ n ≤ 63
Phase_S21(n) : Measured phase of S21 in degree at attenuation state n
dB_S21(n) : Measured magnitude of S21 in dB at attenuation state n
Attenuation Error (Att_err)
Att_err(n)= dB_S21 (n) - dB_S21(0) –0.5xn (dB)
Att _ err(n)
The translation of Att_err(n) from dB to linear is given by: Att_err_lin(n) = 10 ²⁰
Phase variation (Phivar)
Phivar(n) = Phase_S21(n) - Phase_S21(0) (°)
RMS Attenuation Error (Rms_att_err)
∑ ^{Rms_att_err = 20 log}_{}¹⁺
1 _. ⁶³ _(1−
64 _n=0
Att _ err _ lin(n))²

(dB)
RMS Phase variation (Rms_Phivar)
Rms_Phivar =
∑63
(Phi var(n))²
n=0
(°)
64
Absolute Maximum Ratings
Tamb.= +25°C ⁽¹⁾
Symbol
Parameter
V+
Maximum positive voltage
V-
Minimum negative voltage
Ai
CTRL voltage (Vctrl _low, Vctrl _high)
Values
Unit
8V
V
-8
V
-2 to 8
V
Pin
Maximum Input power
23
dBm
Tj
Junction temperature
175
°C
Ta
Operating temperature range
-40 to +85
°C
Tstg
Storage temperature range
-55 to +150
°C
(1) _{Operation of this device above anyone of these parameters may cause permanent}
damage.
Ref. : DSCHT4012-QDG1138 - 18 May 11
3/12
Route Départementale 128, BP46 - 91401 ORSAY Cedex - FRANCE
Tel.: [phone] - Fax: [phone]
Specifications subject to change without notice