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PDF ML7204-001 Data sheet ( Hoja de datos )
| Número de pieza | ML7204-001 | |
| Descripción | VoIP Codec | |
| Fabricantes | OKI Semiconductor | |
| Logotipo |  |
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OKI Semiconductor
ML7204-001
VoIP CODEC
FEDL7204-001DIGEST-01
Issue Date: Aug. 12, 2004
GENERAL DESCRIPTION
The ML7204-001 is a speech CODEC for VoIP. As a speech CODEC, this LSI allows selection of
G.729.A/G711 and supports the PLC (Packet Loss Concealment) function.
With an echo canceler that handles 32 ms-delay and FSK detection/generation, DTMF detection/generation, and
tone detection/generation functions, the ML7204-001 is the most suitable LSI for adding the VoIP function to
TAs and routers.
FEATURES
• Power supply voltage
Digital power supply voltage (DVDD0, 1, 2): 3.0 to 3.6 V
Analog power supply voltage (AVDD):
3.0 to 3.6 V
• Speech CODEC:
G.729.A (8 kbps)/G.711 (64 kbps) µ-law and A-law (supports individual setting for transmission and
reception)
Supports ITU-T G.711 Appendix 1 compliant PLC (Packet Loss Concealment) function
Supports the 2-channel processing function (for 3-way communication)
• Built-in FIFO buffer (640 bytes) for transmission/reception data transfer
Allows selection of Frame/DMA (slave) interface
• Echo canceler for handling 32 ms delay
• DTMF detection
• DTMF generation (the tone generation function enables generation of DTMF signals)
• Tone detection:
2 types (1650 Hz and 2100 Hz: Detection frequency can be changed)
• Tone generation:
2 types
• FSK detection
• FSK generation
• Built-in 16-bit timer:
1 channel
• Dial pulse detection function (secondary function of general-purpose I/O ports)
• Dial pulse transmission function (secondary function of general-purpose I/O ports)
• General-purpose I/O ports
64-pin package: Equipped with 7 ports (with some of them having secondary function allocation)
100-pin package: Equipped with 21 ports (with some of them having secondary function allocation)
• Two types of built-in linear PCM CODEC (CODEC_A and CODEC_B)
• Analog interface
CODEC_A side: Incorporates one type each of input amplifier and output amplifier (10 kΩ driving)
CODEC_B side: Incorporates one type each of input amplifier and output amplifier (10 kΩ driving)
• PCM interface coding format:
Allows selection of 16-bit linear/G.711 (64 kbps) µ-law or A-law
• PCM serial transmission rate: 64 kHz to 2.048 MHz (fixed to 2.048 MHz for output)
• PCM time slot assignment function (allows up to 2 slots for input and 1 slot for output individually)
When set to µ-law/A-law: Supports up to 32 slots (BCLK: 2.048 MHz)
When set to 16-bit linear: Supports up to 16 slots (BCLK: 2.048 MHz)
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1 page  
OKI Semiconductor
FEDL7204-001DIGEST-01
ML7204-001
AVDD 76
77
AIN0P 78
AIN0N 79
GSX0 80
NC 81
GSX1 82
AIN1N 83
NC 84
AVREF 85
VFRO0 86
VFRO1 87
AGND 88
NC 89
NC 90
DGND2 91
XI 92
NC 93
XO 94
DVDD2 95
NC 96
NC 97
VREGOUT 98
VBG 99
NC 100
: Provided for 100-pin packages only
100-Pin Plastic TQFP
50 NC
49 D15
48 D14
47 NC
46 D13
45 D12
44 NC
43 D11
42 D10
41 NC
40 D9
39 D8
38 NC
37 D7
36 D6
35 NC
34 D5
33 D4
32 NC
31 D3
30 D2
29 NC
28 D1
27 D0
26 NC
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5 Page 
OKI Semiconductor
FEDL7204-001DIGEST-01
ML7204-001
ELECTRICAL CHARACTERISTICS
DC Characteristics
(AVDD = 3.0 to 3.6V, DVDD0, 1, 2 = 3.0 to 3.6 V, AGND = DGND0, 1, 2
= 0.0 V, Ta = –20 to 60°C unless otherwise specified)
Parameter
Symbol
Condition
Min. Typ. Max. Unit
ISS
Standby state
(PDNB = ”0”, DVDD = AVDD=3.3 V, Ta = 25°C)
—
200 500 µA
Operating status 1
IDD1
Speech CODEC activated/PCM I/F not used
SC_EN = ”1”, AFEA_EN = ”0”, AFEB_EN = ”1”,
—
45 55 mA
Power supply current
XI, XO: 12.288 MHz crystal connected
Operating status 2
Speech CODEC activated/PCM I/F used
IDD2
SC_EN = ”1”,PCMI1_EN = ”1”, PCMO1_EN
= ”1”,
— 50 65 mA
AFEA_EN=”0”, AFEB_EN=”0”
XI, XO: 12.288 MHz crystal connected
Digital input pin
IIH
Vin = DVDD
— 0.01 10 µA
Input leakage current IIL
Vin = DGND
–10 –0.01 — µA
Digital I/O pin
IOZH
Vou = DVDD
— 0.01 10 µA
Output leakage
current
IOZL
Vout = DGND
–10 —
— µA
Digital input pins, I/O pin
High-level output
voltage
VOH
IOH = 4.0 mA
IOH = 0.5 mA (XO pin)
0.78 ×
DVDD
—
—V
IOH = 1 2.0 mA (CLKOUT pin)
Digital output pins, I/O pin
Low-level output
VOL1
IOL = –4.0 mA
IOL = –0.5 mA (XO pin)
— — 0.4 V
voltage
IO = –12.0 mA (CLKOUT pin)
VOL2
Open drain output pins
IOL = –12.0 mA
— — 0.4 V
Input capacitance (*1)
CIN1
CIN2
Input pins
I/O pins
— 6 — pF
— 10 — pF
*1 Design guaranteed value
11/42
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| Páginas | Total 42 Páginas | |
| PDF Descargar | [ Datasheet ML7204-001.PDF ] | |
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