TH7301 Datasheet, PDF (7/14 Pages) List of Unclassifed Manufacturers – Dual-Channel Programmable Low-Pass Filter

TH7301 Dual-Channel Programmable Low-Pass Filter
Operating
Characteristics
(continued)
Parameter
Symbol Test level Min. Typ. Max. Unit Conditions
Passband
Group Delay Ripple
t_pass
3
6
12
ns 10 Hz ≤ f ≤ 0.5f_c
see note 2, 3 and figure 8
Initial Gain Accuracy
A_vacc
2
-2.5
3.0 dB see note 4 and figures 9
and 10
Gain Step Accuracy
A_vmon
3
- 1.0
(monotonicity guaranteed)
1.0 dB
Output
Signal-to-Noise Ratio
SNR
3
37
38
dB see note 5
Crosstalk between
Channels
Xtalk
3
40
50
dB see note 6, 7
Gain Match between
Channels
A_vmatch
2
- 0.8
0.8 dB
Bandwidth Match between f_cmatch
2
-10
Channels
-5
Passband Group Delay
t_passm
3
-3
Match between Channels
10
% f_cset ≤ 6.375 MHz
5
% f_cset ≥ 6.4 MHz
+3
ns 10 Hz ≤ f ≤ 0.5f_c
Total Harmonic Distortion THD
5
1.0 2.5 % see note 8
Power Supply Rejection
PSR
4
40
dB see note 9
Intermodulation Distortion IMD
3
- 48 - 37 dBc see note 10
Output Voltage
Input Resistance
Input Capacitance
Load Resistance
Load Capacitance
Notes
V_o
3
1.0 VPP see note 11
R_in
4
3.0
kΩ
C_in
4
12
pF
R_ld
4
1
kΩ see note 12
C_ld
4
15 pF
1. Logic threshold levels for inputs SCLK, SDATA and SDEN. Note that this is a negative-supply device
(VEE,VSS = -5 V, VCC, VDD = 0 V). It can be also used for positive-supply systems if the input
signals are referred to VCC, VDD = +5 V and VEE,VSS = 0 V.
2. f_cset = 10 MHz, A_v = 10 dB
3. passband group delay ripple for an ideal 4 pole Butterworth under the same conditions is 6ns
4. measured at 0.25fc
5. V_o = 1 VPP, measured within the filter's noise bandwidth, f_cset = 10 MHz, A_v = 10 dB, f_in < f_c
6. V_o = 1 VPP, for Xtalk_IQ I driven Q measured, Xtalk_QI Q driven I measured, f_cset = 22.4 MHz,
A_v = 20.5 dB,
7. f_in = 5 MHz
8. f_in = 0.25f_c; V_o = 1 VPP; C_ld = 15 pF, A_v = 10 dB
9. 100mVPP from 10 Hz to 1 MHz on VEE,VSS referred to the output.
10. f_cset = 10 MHz, A_v = 10 dB; tones at f₁= 15 MHz and f₂ = 25 MHz with 300 mVPP each
11. R_ld = 1 kΩ, for linear gain and not to exceed Xtalk, THD and IMD
12. AC coupled or DC coupled to VEE, VSS
Test levels (DC and AC Characteristics)
level 1: production tested at 25° C and over full power supply range
level 2: production tested at 25° C and VEE = -5.0 V
level 3: guaranteed by design and characterization test over full temperature and power supply range
level 4: typical value only, not confirmed by test
level 5: guaranteed by design and characterization at 25 °C and VEE = -5.0 V
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