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PDF M6996H Data sheet ( Hoja de datos )
| Número de pieza | M6996H | |
| Descripción | MSM6996H | |
| Fabricantes | OKI electronic | |
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Hay una vista previa y un enlace de descarga de M6996H (archivo pdf) en la parte inferior de esta página. Total 21 Páginas | ||
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E2U0010-28-81
¡ Semiconductor¡ Semiconductor
MSM6996H/6996V/T6h9i9s7vHe/r6s9io9n7:VA/6u9g9.81/9699899
Previous version: Nov. 1996
MSM6996H/6996V/6997H/6997V/6998w/w6w9.Da9ta9Sheet4U.com
Single Chip CODEC
GENERAL DESCRIPTION
The MSM6996H/MSM6996V/MSM6997H/MSM6997V/MSM6998/MSM6999 are a single-channel
CODEC CMOS ICs containing filters for A/D and D/A converting of the voice signal ranging from
300 Hz to 3400 Hz.
FEATURES
• Compliance with ITU-T companding Law
MSM6996H/MSM6996V/MSM6998 : A-law
MSM6997H/MSM6997V/MSM6999 : m-law
• Capable of independent operation of transmission and reception
• Transmission clock in the range of 64 kHz to 2048 kHz
• Adjustable transmit gain
• 600 W drive for analog output
MSM6996H/MSM6996V/MSM6997H/MSM6997V single end drive
MSM6998/MSM6999 Push-pull drive
• Built-in analog loop back fanction
MSM6996V/MSM6997V
• Built-in reference voltage source
• Low Power Dissipation (60 mW to 70 mW Typ.)
• Package options :
16-pin plastic DIP (DIP16-P-300-2.54) (Product name : MSM6996HRS/MSM6997HRS)
(Product name : MSM6996VRS/MSM6997VRS)
(Product name : MSM6998RS/MSM6999RS)
16-pin cer DIP (DIP16-G-300-2.54-1) (Product name : MSM6996HAS/MSM6997HAS)
(Product name : MSM6996VAS/MSM6997VAS)
(Product name : MSM6998AS/MSM6999AS)
24-pin plastic SOP (SOP24-P-430-1.27-K) (Product name : MSM6996HGS-K/MSM6997HGS-K)
(Product name : MSM6996VGS-K/MSM6997VGS-K)
(Product name : MSM6998GS-K/MSM6999GS-K)
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1 page  
¡ Semiconductor
MSM6996H/6996V/6997H/6997V/6998/6999
PIN AND FUNCTIONAL DESCRIPTIONS
AIN+, AIN–, GSX
www.DataSheet4U.com
These three pins are used for the transmit level adjustment.
AIN+ is a non-inverting analog input pin which is connected to the non-inverting input of a transmit
amplifier.
AIN– is an inverting analog input pin which is connected to the inverting input of the transmit
amplifier.
GSX is a transmit amplifier output pin.
Adjustment can be done by following method.
Analog
Input
C1
R1
AIN+
+
AIN–
–
R2 GSX
RC
Active
Filter
R3 R2
Gain = 1 + R3 < 10
AG
Notes: 1. R2 + R3 > 10 kW
2. When the DC off-set voltage of analog input is more than 20 mV, C1 and R1 should
provide for DC blocking.
In this case, cut-off frequency of HPF, composed by R1 and C1, should be less than 30 Hz.
3. R1 should be less than 20 kW
AG
AG is an analog ground.
AG is connected to the analog system ground.
AOUT
AOUT is the analog signal output pin for the MSM6996H/V and MSM6997H/V.
The output voltage range is 5 VPP. This output can drive the 600 W resistor.
AOUT+, AOUT–
Analog output for the MSM6998 and MSM6999.
The output signal amplitudes are 5 VPP. The AOUT– output is inverted to the AOUT+ output. These
outputs can drive a 600 W impedance.
VDD
VDD is the positive power supply.
The voltage supplied to this pin should be +5 V ±5%.
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5 Page 
¡ Semiconductor
MSM6996H/6996V/6997H/6997V/6998/6999
AC Characteristics
Parameter
Transmit Frequency Response
Receive Frequency Response
Transmit Signal to Noise
Ratio *1
Receive Signal to Noise
Ratio *1
Transmit Gain Tracking
Receive Gain Tracking
Symbol
LOSS T1
LOSS T2
LOSS T3
LOSS T4
LOSS T5
LOSS T6
LOSS R1
LOSS R2
LOSS R3
LOSS R4
LOSS R5
SD T1
SD T2
SD T3
SD T4
SD T5
SD R1
SD R2
SD R3
SD R4
SD R5
GT T1
GT T2
GT T3
GT T4
GT T5
GT R1
GT R2
GT R3
GT R4
GT R5
(VDD = +5 V ±5%, VSS = –5 V ±5%w, Twaw=.0D°aCtatoSh70e°eCt4)U.com
Condition
Freq. Level
Min. Typ. Max. Unit
(Hz) (dBm0)
60 20 — —
300 –0.15 — +0.25
820
2020
0
Reference
–0.15 — +0.25
dB
3000
–0.15 — +0.25
3400
0 — 0.8
300 –0.1 — +0.2
820 Reference
2020
0
–0.1 — +0.2 dB
3000
–0.1 — +0.2
3400
0 — 0.8
3 36 — —
1020
0
36 — —
or –30
36 — — dB
820 –40
31 — —
–45 26 — —
3 36 — —
1020
0
36 — —
or –30
36 — — dB
820 –40
31 — —
–45 26 — —
3 –0.2 — +0.2
1020
–10
Reference
or –40
–0.2 — +0.2 dB
820 –50
–0.4 — +0.4
–55 –0.8 — +0.8
3 –0.2 — +0.2
1020
–10
Reference
or –40
–0.2 — +0.2 dB
820 –50
–0.4 — +0.4
–55 –0.8 — +0.8
Note: *1 The measurement is taken with P-message filter
11/21
11 Page | ||
| Páginas | Total 21 Páginas | |
| PDF Descargar | [ Datasheet M6996H.PDF ] | |
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