Manual

ISD4004 Series
13
ISD
1. Typical values: T
A
= 25°C and 3.0 V.
2. All min/max limits are guaranteed by ISD via electrical testing or characterization. Not all specifications are 100
percent tested.
3. Low-frequency cut off depends upon the value of external capacitors (see Pin Descriptions).
4. Single-ended input mode. In the differential input mode, V
IN
maximum for ANA IN+ and ANA IN– is 16 mV peak-
to-peak.
5. Sampling Frequency and Duration can vary as much as ±2.25 percent over the commercial temperature and
voltage ranges. For greater stability, an external clock can be utilized (see Pin Descriptions).
6. Filter specification applies to the antialiasing filter and to the smoothing filter.
7. The typical output voltage will be approximately 570 mV peak-to-peak with V
IN
at 32 mV peak-to-peak.
8. For optimal signal quality, this maximum limit is recommended.
9. When a record command is sent, T
RAC
=T
RAC
+T
RACLO
on the first row addressed.
1. Typical values: T
A
= 25°C and 3.0 V. Timing measured at 50 percent of the V
CC
level.
2. Tristate test condition.
THD Total Harmonic Distortion 1 2 % @ 1 KHz
V
IN
ANA IN Input Voltage 32 mV Peak-to-Peak
(4) (7) (8)
Table 12: SPI AC Parameters
1
Symbol Characteristics Min Max Units Conditions
T
SSS
SS Setup Time 500 nsec
T
SSH
SS Hold Time 500 nsec
T
DIS
Data in Setup Time 200 nsec
T
DIH
Data in Hold Time 200 nsec
T
PD
Output Delay 500 nsec
T
DF
(2)
Output Delay to hiZ 500 nsec
T
SSmin
SS HIGH 1 msec
T
SCKhi
SCLK High Time 400 nsec
T
SCKlow
SCLK Low Time 400 nsec
F
0
CLK Frequency 1,000 KHz
Table 11: AC Parameters (Die)
Symbol Characteristic Min
(2)
Typ
(1)
Max
(2)
Units Conditions