821054PQF Integrated Device Technology (Idt), 821054PQF Datasheet - Page 37

• Manufacturer Part Number: 821054PQF
• Description: Audio Codec 4ADC / 4DAC 64-Pin PQFP
• Manufacturer: Integrated Device Technology (Idt)
• Type: PCMr

Specifications of 821054PQF

• Package: 64PQFP
• Number Of Channels: 4ADC /4 DAC
• Number Of Dacs: 4
• Operating Supply Voltage: 5 V

IDT821054 QUAD PROGRAMMABLE PCM CODEC WITH MPI INTERFACE
7
1020 Hz sine wave; the input amplifier is set for unity gain. The digital input is a PCM bit stream equivalent to that obtained by passing a 0 dBm0, 1020
Hz sine wave through an ideal encoder. The output level is sin(x)/x-corrected. Typical values are for V
7.1
7.2
7.3
Parameter
Parameter
Parameter
0 dBm0 is defined as 0.775 Vrms for A-law and 0.769 Vrms for
G
G
G
G
G
G
XA
RA
TX
TR
RR
XR
TRANSMISSION CHARACTERISTICS
ABSOLUTE GAIN
GAIN TRACKING
FREQUENCY RESPONSE
Transmit gain, absolute
Receive gain, absolute
Transmit gain tracking
+3 dBm0 to −37 dBm0 (exclude −37 dBm0)
−37 dBm0 to −50 dBm0 (exclude −50 dBm0)
−50 dBm0 to −55 dBm0
Receive gain tracking
+3 dBm0 to −40 dBm0 (exclude −40 dBm0)
−40 dBm0 to −50 dBm0 (exclude −50 dBm0)
−50 dBm0 to −55 dBm0
Transmit gain, relative to G
Receive gain, relative to G
f < 300 Hz
f = 3600 Hz
f ≥ 4600 Hz
f = 50 Hz
f = 60 Hz
f = 300 Hz
f = 300 to 3000 Hz (exclude 3000 Hz)
f = 3000 Hz to 3400 Hz
f = 3600 Hz
f ≥ 4600 Hz
f = 300 to 3000 Hz (exclude 3000 Hz)
f = 3000 Hz to 3400 Hz
Description
Description
Description
RA
XA
−0.25
−0.25
Min.
−0.10
−0.15
−0.60
−0.15
−0.60
Min.
−0.25
−0.50
−1.40
−0.10
−0.25
−0.50
Min.
Typ.
µ
Typ.
-law, both for 600 Ω load. Unless otherwise noted, the analog input is a 0 dBm0,
Typ.
37
Max.
0.25
0.25
−0.10
−0.20
Max.
0.20
0.15
0.15
0.15
0.15
−30
−30
−35
−35
0
Max.
0.25
0.50
1.40
0.10
0.50
0.50
Units
dB
dB
Units
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
Units
dB
dB
dB
dB
dB
dB
Signal output of 0 dBm0, µ-law or A-law
Measured relative to 0 dBm0, µ-law or A-law, PCM
input of 0 dBm0, 1020 Hz. R
DD
= +5 V and T
INDUSTRIAL TEMPERATURE RANGE
Tested by sinusoidal method, A-law or µ-law.
Tested by sinusoidal method, A-law or µ-law.
The high-pass filter is enabled.
Test Conditions
A
Test Conditions
= 25°C.
Test Conditions
L
= 10 kΩ.