ISD4004 Datasheet, PDF (17/28 Pages) Winbond – Single-Chip Voice Record/Playback Devices 8-, 10-, 12-, and 16-Minute Durations

ISD4004 Series
Symbol
Table 11: AC Parameters (Die)
Characteristic
Min⁽²⁾
Typ⁽¹⁾ Max⁽²⁾
Units
Conditions
THD
Total Harmonic Distortion
V_IN
ANA IN Input Voltage
1
2
32
% @ 1 KHz
mV Peak-to-Peak^{(4) (7) (8)}
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.
Table 12: SPI AC Parameters¹
Symbol
Characteristics
Min
Max
Units
Conditions
T_SSS
T_SSH
T_DIS
T_DIH
T_PD
T_DF(2)
T_SSmin
T_SCKhi
T_SCKlow
F₀
SS Setup Time
SS Hold Time
Data in Setup Time
Data in Hold Time
Output Delay
Output Delay to hiZ
SS HIGH
SCLK High Time
SCLK Low Time
CLK Frequency
500
nsec
500
nsec
200
nsec
200
nsec
500
nsec
500
nsec
1
msec
400
nsec
400
nsec
1,000
KHz
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.
ISD
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